sync theme

1 files changed, 0 insertions, 2314 deletions

diff --git a/themes/blowfish/assets/lib/mermaid/layout-163b9689.js b/themes/blowfish/assets/lib/mermaid/layout-163b9689.js
deleted file mode 100644
index 5781ad2..0000000
--- a/themes/blowfish/assets/lib/mermaid/layout-163b9689.js
+++ /dev/null
@@ -1,2314 +0,0 @@
-import { a as isSymbol, b as baseFlatten, c as baseClone, d as baseIteratee, k as keys, e as baseFindIndex, g as baseEach, j as arrayMap, l as castFunction, m as baseForOwn, n as castPath, t as toKey, o as baseGet, p as hasIn, q as toString, f as forEach, G as Graph, h as has, i as isUndefined, r as filter, v as values, s as reduce } from "./graph-fe24fab6.js";
-import { a8 as isObject, a9 as setToString, aa as overRest, ab as root, ac as baseRest, ad as isIterateeCall, ae as keysIn, af as eq, ag as isArrayLike, ah as isArray, ai as baseFor, aj as baseAssignValue, ak as identity, al as isIndex, am as assignValue, an as baseUnary, ao as constant, ap as merge } from "./mermaid-dcacb631.js";
-var reWhitespace = /\s/;
-function trimmedEndIndex(string) {
-  var index = string.length;
-  while (index-- && reWhitespace.test(string.charAt(index))) {
-  }
-  return index;
-}
-var reTrimStart = /^\s+/;
-function baseTrim(string) {
-  return string ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, "") : string;
-}
-var NAN = 0 / 0;
-var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
-var reIsBinary = /^0b[01]+$/i;
-var reIsOctal = /^0o[0-7]+$/i;
-var freeParseInt = parseInt;
-function toNumber(value) {
-  if (typeof value == "number") {
-    return value;
-  }
-  if (isSymbol(value)) {
-    return NAN;
-  }
-  if (isObject(value)) {
-    var other = typeof value.valueOf == "function" ? value.valueOf() : value;
-    value = isObject(other) ? other + "" : other;
-  }
-  if (typeof value != "string") {
-    return value === 0 ? value : +value;
-  }
-  value = baseTrim(value);
-  var isBinary = reIsBinary.test(value);
-  return isBinary || reIsOctal.test(value) ? freeParseInt(value.slice(2), isBinary ? 2 : 8) : reIsBadHex.test(value) ? NAN : +value;
-}
-var INFINITY = 1 / 0, MAX_INTEGER = 17976931348623157e292;
-function toFinite(value) {
-  if (!value) {
-    return value === 0 ? value : 0;
-  }
-  value = toNumber(value);
-  if (value === INFINITY || value === -INFINITY) {
-    var sign = value < 0 ? -1 : 1;
-    return sign * MAX_INTEGER;
-  }
-  return value === value ? value : 0;
-}
-function toInteger(value) {
-  var result = toFinite(value), remainder = result % 1;
-  return result === result ? remainder ? result - remainder : result : 0;
-}
-function flatten(array) {
-  var length = array == null ? 0 : array.length;
-  return length ? baseFlatten(array, 1) : [];
-}
-function flatRest(func) {
-  return setToString(overRest(func, void 0, flatten), func + "");
-}
-var CLONE_DEEP_FLAG = 1, CLONE_SYMBOLS_FLAG = 4;
-function cloneDeep(value) {
-  return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
-}
-var now = function() {
-  return root.Date.now();
-};
-const now$1 = now;
-var objectProto = Object.prototype;
-var hasOwnProperty = objectProto.hasOwnProperty;
-var defaults = baseRest(function(object, sources) {
-  object = Object(object);
-  var index = -1;
-  var length = sources.length;
-  var guard = length > 2 ? sources[2] : void 0;
-  if (guard && isIterateeCall(sources[0], sources[1], guard)) {
-    length = 1;
-  }
-  while (++index < length) {
-    var source = sources[index];
-    var props = keysIn(source);
-    var propsIndex = -1;
-    var propsLength = props.length;
-    while (++propsIndex < propsLength) {
-      var key = props[propsIndex];
-      var value = object[key];
-      if (value === void 0 || eq(value, objectProto[key]) && !hasOwnProperty.call(object, key)) {
-        object[key] = source[key];
-      }
-    }
-  }
-  return object;
-});
-const defaults$1 = defaults;
-function last(array) {
-  var length = array == null ? 0 : array.length;
-  return length ? array[length - 1] : void 0;
-}
-function createFind(findIndexFunc) {
-  return function(collection, predicate, fromIndex) {
-    var iterable = Object(collection);
-    if (!isArrayLike(collection)) {
-      var iteratee = baseIteratee(predicate);
-      collection = keys(collection);
-      predicate = function(key) {
-        return iteratee(iterable[key], key, iterable);
-      };
-    }
-    var index = findIndexFunc(collection, predicate, fromIndex);
-    return index > -1 ? iterable[iteratee ? collection[index] : index] : void 0;
-  };
-}
-var nativeMax$1 = Math.max;
-function findIndex(array, predicate, fromIndex) {
-  var length = array == null ? 0 : array.length;
-  if (!length) {
-    return -1;
-  }
-  var index = fromIndex == null ? 0 : toInteger(fromIndex);
-  if (index < 0) {
-    index = nativeMax$1(length + index, 0);
-  }
-  return baseFindIndex(array, baseIteratee(predicate), index);
-}
-var find = createFind(findIndex);
-const find$1 = find;
-function baseMap(collection, iteratee) {
-  var index = -1, result = isArrayLike(collection) ? Array(collection.length) : [];
-  baseEach(collection, function(value, key, collection2) {
-    result[++index] = iteratee(value, key, collection2);
-  });
-  return result;
-}
-function map(collection, iteratee) {
-  var func = isArray(collection) ? arrayMap : baseMap;
-  return func(collection, baseIteratee(iteratee));
-}
-function forIn(object, iteratee) {
-  return object == null ? object : baseFor(object, castFunction(iteratee), keysIn);
-}
-function forOwn(object, iteratee) {
-  return object && baseForOwn(object, castFunction(iteratee));
-}
-function baseGt(value, other) {
-  return value > other;
-}
-function baseLt(value, other) {
-  return value < other;
-}
-function mapValues(object, iteratee) {
-  var result = {};
-  iteratee = baseIteratee(iteratee);
-  baseForOwn(object, function(value, key, object2) {
-    baseAssignValue(result, key, iteratee(value, key, object2));
-  });
-  return result;
-}
-function baseExtremum(array, iteratee, comparator) {
-  var index = -1, length = array.length;
-  while (++index < length) {
-    var value = array[index], current = iteratee(value);
-    if (current != null && (computed === void 0 ? current === current && !isSymbol(current) : comparator(current, computed))) {
-      var computed = current, result = value;
-    }
-  }
-  return result;
-}
-function max(array) {
-  return array && array.length ? baseExtremum(array, identity, baseGt) : void 0;
-}
-function min(array) {
-  return array && array.length ? baseExtremum(array, identity, baseLt) : void 0;
-}
-function minBy(array, iteratee) {
-  return array && array.length ? baseExtremum(array, baseIteratee(iteratee), baseLt) : void 0;
-}
-function baseSet(object, path, value, customizer) {
-  if (!isObject(object)) {
-    return object;
-  }
-  path = castPath(path, object);
-  var index = -1, length = path.length, lastIndex = length - 1, nested = object;
-  while (nested != null && ++index < length) {
-    var key = toKey(path[index]), newValue = value;
-    if (key === "__proto__" || key === "constructor" || key === "prototype") {
-      return object;
-    }
-    if (index != lastIndex) {
-      var objValue = nested[key];
-      newValue = customizer ? customizer(objValue, key, nested) : void 0;
-      if (newValue === void 0) {
-        newValue = isObject(objValue) ? objValue : isIndex(path[index + 1]) ? [] : {};
-      }
-    }
-    assignValue(nested, key, newValue);
-    nested = nested[key];
-  }
-  return object;
-}
-function basePickBy(object, paths, predicate) {
-  var index = -1, length = paths.length, result = {};
-  while (++index < length) {
-    var path = paths[index], value = baseGet(object, path);
-    if (predicate(value, path)) {
-      baseSet(result, castPath(path, object), value);
-    }
-  }
-  return result;
-}
-function baseSortBy(array, comparer) {
-  var length = array.length;
-  array.sort(comparer);
-  while (length--) {
-    array[length] = array[length].value;
-  }
-  return array;
-}
-function compareAscending(value, other) {
-  if (value !== other) {
-    var valIsDefined = value !== void 0, valIsNull = value === null, valIsReflexive = value === value, valIsSymbol = isSymbol(value);
-    var othIsDefined = other !== void 0, othIsNull = other === null, othIsReflexive = other === other, othIsSymbol = isSymbol(other);
-    if (!othIsNull && !othIsSymbol && !valIsSymbol && value > other || valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol || valIsNull && othIsDefined && othIsReflexive || !valIsDefined && othIsReflexive || !valIsReflexive) {
-      return 1;
-    }
-    if (!valIsNull && !valIsSymbol && !othIsSymbol && value < other || othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol || othIsNull && valIsDefined && valIsReflexive || !othIsDefined && valIsReflexive || !othIsReflexive) {
-      return -1;
-    }
-  }
-  return 0;
-}
-function compareMultiple(object, other, orders) {
-  var index = -1, objCriteria = object.criteria, othCriteria = other.criteria, length = objCriteria.length, ordersLength = orders.length;
-  while (++index < length) {
-    var result = compareAscending(objCriteria[index], othCriteria[index]);
-    if (result) {
-      if (index >= ordersLength) {
-        return result;
-      }
-      var order2 = orders[index];
-      return result * (order2 == "desc" ? -1 : 1);
-    }
-  }
-  return object.index - other.index;
-}
-function baseOrderBy(collection, iteratees, orders) {
-  if (iteratees.length) {
-    iteratees = arrayMap(iteratees, function(iteratee) {
-      if (isArray(iteratee)) {
-        return function(value) {
-          return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);
-        };
-      }
-      return iteratee;
-    });
-  } else {
-    iteratees = [identity];
-  }
-  var index = -1;
-  iteratees = arrayMap(iteratees, baseUnary(baseIteratee));
-  var result = baseMap(collection, function(value, key, collection2) {
-    var criteria = arrayMap(iteratees, function(iteratee) {
-      return iteratee(value);
-    });
-    return { "criteria": criteria, "index": ++index, "value": value };
-  });
-  return baseSortBy(result, function(object, other) {
-    return compareMultiple(object, other, orders);
-  });
-}
-function basePick(object, paths) {
-  return basePickBy(object, paths, function(value, path) {
-    return hasIn(object, path);
-  });
-}
-var pick = flatRest(function(object, paths) {
-  return object == null ? {} : basePick(object, paths);
-});
-const pick$1 = pick;
-var nativeCeil = Math.ceil, nativeMax = Math.max;
-function baseRange(start, end, step, fromRight) {
-  var index = -1, length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), result = Array(length);
-  while (length--) {
-    result[fromRight ? length : ++index] = start;
-    start += step;
-  }
-  return result;
-}
-function createRange(fromRight) {
-  return function(start, end, step) {
-    if (step && typeof step != "number" && isIterateeCall(start, end, step)) {
-      end = step = void 0;
-    }
-    start = toFinite(start);
-    if (end === void 0) {
-      end = start;
-      start = 0;
-    } else {
-      end = toFinite(end);
-    }
-    step = step === void 0 ? start < end ? 1 : -1 : toFinite(step);
-    return baseRange(start, end, step, fromRight);
-  };
-}
-var range = createRange();
-const range$1 = range;
-var sortBy = baseRest(function(collection, iteratees) {
-  if (collection == null) {
-    return [];
-  }
-  var length = iteratees.length;
-  if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
-    iteratees = [];
-  } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
-    iteratees = [iteratees[0]];
-  }
-  return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
-});
-const sortBy$1 = sortBy;
-var idCounter = 0;
-function uniqueId(prefix) {
-  var id = ++idCounter;
-  return toString(prefix) + id;
-}
-function baseZipObject(props, values2, assignFunc) {
-  var index = -1, length = props.length, valsLength = values2.length, result = {};
-  while (++index < length) {
-    var value = index < valsLength ? values2[index] : void 0;
-    assignFunc(result, props[index], value);
-  }
-  return result;
-}
-function zipObject(props, values2) {
-  return baseZipObject(props || [], values2 || [], assignValue);
-}
-class List {
-  constructor() {
-    var sentinel = {};
-    sentinel._next = sentinel._prev = sentinel;
-    this._sentinel = sentinel;
-  }
-  dequeue() {
-    var sentinel = this._sentinel;
-    var entry = sentinel._prev;
-    if (entry !== sentinel) {
-      unlink(entry);
-      return entry;
-    }
-  }
-  enqueue(entry) {
-    var sentinel = this._sentinel;
-    if (entry._prev && entry._next) {
-      unlink(entry);
-    }
-    entry._next = sentinel._next;
-    sentinel._next._prev = entry;
-    sentinel._next = entry;
-    entry._prev = sentinel;
-  }
-  toString() {
-    var strs = [];
-    var sentinel = this._sentinel;
-    var curr = sentinel._prev;
-    while (curr !== sentinel) {
-      strs.push(JSON.stringify(curr, filterOutLinks));
-      curr = curr._prev;
-    }
-    return "[" + strs.join(", ") + "]";
-  }
-}
-function unlink(entry) {
-  entry._prev._next = entry._next;
-  entry._next._prev = entry._prev;
-  delete entry._next;
-  delete entry._prev;
-}
-function filterOutLinks(k, v) {
-  if (k !== "_next" && k !== "_prev") {
-    return v;
-  }
-}
-var DEFAULT_WEIGHT_FN = constant(1);
-function greedyFAS(g, weightFn) {
-  if (g.nodeCount() <= 1) {
-    return [];
-  }
-  var state = buildState(g, weightFn || DEFAULT_WEIGHT_FN);
-  var results = doGreedyFAS(state.graph, state.buckets, state.zeroIdx);
-  return flatten(
-    map(results, function(e) {
-      return g.outEdges(e.v, e.w);
-    })
-  );
-}
-function doGreedyFAS(g, buckets, zeroIdx) {
-  var results = [];
-  var sources = buckets[buckets.length - 1];
-  var sinks = buckets[0];
-  var entry;
-  while (g.nodeCount()) {
-    while (entry = sinks.dequeue()) {
-      removeNode(g, buckets, zeroIdx, entry);
-    }
-    while (entry = sources.dequeue()) {
-      removeNode(g, buckets, zeroIdx, entry);
-    }
-    if (g.nodeCount()) {
-      for (var i = buckets.length - 2; i > 0; --i) {
-        entry = buckets[i].dequeue();
-        if (entry) {
-          results = results.concat(removeNode(g, buckets, zeroIdx, entry, true));
-          break;
-        }
-      }
-    }
-  }
-  return results;
-}
-function removeNode(g, buckets, zeroIdx, entry, collectPredecessors) {
-  var results = collectPredecessors ? [] : void 0;
-  forEach(g.inEdges(entry.v), function(edge) {
-    var weight = g.edge(edge);
-    var uEntry = g.node(edge.v);
-    if (collectPredecessors) {
-      results.push({ v: edge.v, w: edge.w });
-    }
-    uEntry.out -= weight;
-    assignBucket(buckets, zeroIdx, uEntry);
-  });
-  forEach(g.outEdges(entry.v), function(edge) {
-    var weight = g.edge(edge);
-    var w = edge.w;
-    var wEntry = g.node(w);
-    wEntry["in"] -= weight;
-    assignBucket(buckets, zeroIdx, wEntry);
-  });
-  g.removeNode(entry.v);
-  return results;
-}
-function buildState(g, weightFn) {
-  var fasGraph = new Graph();
-  var maxIn = 0;
-  var maxOut = 0;
-  forEach(g.nodes(), function(v) {
-    fasGraph.setNode(v, { v, in: 0, out: 0 });
-  });
-  forEach(g.edges(), function(e) {
-    var prevWeight = fasGraph.edge(e.v, e.w) || 0;
-    var weight = weightFn(e);
-    var edgeWeight = prevWeight + weight;
-    fasGraph.setEdge(e.v, e.w, edgeWeight);
-    maxOut = Math.max(maxOut, fasGraph.node(e.v).out += weight);
-    maxIn = Math.max(maxIn, fasGraph.node(e.w)["in"] += weight);
-  });
-  var buckets = range$1(maxOut + maxIn + 3).map(function() {
-    return new List();
-  });
-  var zeroIdx = maxIn + 1;
-  forEach(fasGraph.nodes(), function(v) {
-    assignBucket(buckets, zeroIdx, fasGraph.node(v));
-  });
-  return { graph: fasGraph, buckets, zeroIdx };
-}
-function assignBucket(buckets, zeroIdx, entry) {
-  if (!entry.out) {
-    buckets[0].enqueue(entry);
-  } else if (!entry["in"]) {
-    buckets[buckets.length - 1].enqueue(entry);
-  } else {
-    buckets[entry.out - entry["in"] + zeroIdx].enqueue(entry);
-  }
-}
-function run$2(g) {
-  var fas = g.graph().acyclicer === "greedy" ? greedyFAS(g, weightFn(g)) : dfsFAS(g);
-  forEach(fas, function(e) {
-    var label = g.edge(e);
-    g.removeEdge(e);
-    label.forwardName = e.name;
-    label.reversed = true;
-    g.setEdge(e.w, e.v, label, uniqueId("rev"));
-  });
-  function weightFn(g2) {
-    return function(e) {
-      return g2.edge(e).weight;
-    };
-  }
-}
-function dfsFAS(g) {
-  var fas = [];
-  var stack = {};
-  var visited = {};
-  function dfs2(v) {
-    if (has(visited, v)) {
-      return;
-    }
-    visited[v] = true;
-    stack[v] = true;
-    forEach(g.outEdges(v), function(e) {
-      if (has(stack, e.w)) {
-        fas.push(e);
-      } else {
-        dfs2(e.w);
-      }
-    });
-    delete stack[v];
-  }
-  forEach(g.nodes(), dfs2);
-  return fas;
-}
-function undo$2(g) {
-  forEach(g.edges(), function(e) {
-    var label = g.edge(e);
-    if (label.reversed) {
-      g.removeEdge(e);
-      var forwardName = label.forwardName;
-      delete label.reversed;
-      delete label.forwardName;
-      g.setEdge(e.w, e.v, label, forwardName);
-    }
-  });
-}
-function addDummyNode(g, type, attrs, name) {
-  var v;
-  do {
-    v = uniqueId(name);
-  } while (g.hasNode(v));
-  attrs.dummy = type;
-  g.setNode(v, attrs);
-  return v;
-}
-function simplify(g) {
-  var simplified = new Graph().setGraph(g.graph());
-  forEach(g.nodes(), function(v) {
-    simplified.setNode(v, g.node(v));
-  });
-  forEach(g.edges(), function(e) {
-    var simpleLabel = simplified.edge(e.v, e.w) || { weight: 0, minlen: 1 };
-    var label = g.edge(e);
-    simplified.setEdge(e.v, e.w, {
-      weight: simpleLabel.weight + label.weight,
-      minlen: Math.max(simpleLabel.minlen, label.minlen)
-    });
-  });
-  return simplified;
-}
-function asNonCompoundGraph(g) {
-  var simplified = new Graph({ multigraph: g.isMultigraph() }).setGraph(g.graph());
-  forEach(g.nodes(), function(v) {
-    if (!g.children(v).length) {
-      simplified.setNode(v, g.node(v));
-    }
-  });
-  forEach(g.edges(), function(e) {
-    simplified.setEdge(e, g.edge(e));
-  });
-  return simplified;
-}
-function intersectRect(rect, point) {
-  var x = rect.x;
-  var y = rect.y;
-  var dx = point.x - x;
-  var dy = point.y - y;
-  var w = rect.width / 2;
-  var h = rect.height / 2;
-  if (!dx && !dy) {
-    throw new Error("Not possible to find intersection inside of the rectangle");
-  }
-  var sx, sy;
-  if (Math.abs(dy) * w > Math.abs(dx) * h) {
-    if (dy < 0) {
-      h = -h;
-    }
-    sx = h * dx / dy;
-    sy = h;
-  } else {
-    if (dx < 0) {
-      w = -w;
-    }
-    sx = w;
-    sy = w * dy / dx;
-  }
-  return { x: x + sx, y: y + sy };
-}
-function buildLayerMatrix(g) {
-  var layering = map(range$1(maxRank(g) + 1), function() {
-    return [];
-  });
-  forEach(g.nodes(), function(v) {
-    var node = g.node(v);
-    var rank2 = node.rank;
-    if (!isUndefined(rank2)) {
-      layering[rank2][node.order] = v;
-    }
-  });
-  return layering;
-}
-function normalizeRanks(g) {
-  var min$1 = min(
-    map(g.nodes(), function(v) {
-      return g.node(v).rank;
-    })
-  );
-  forEach(g.nodes(), function(v) {
-    var node = g.node(v);
-    if (has(node, "rank")) {
-      node.rank -= min$1;
-    }
-  });
-}
-function removeEmptyRanks(g) {
-  var offset = min(
-    map(g.nodes(), function(v) {
-      return g.node(v).rank;
-    })
-  );
-  var layers = [];
-  forEach(g.nodes(), function(v) {
-    var rank2 = g.node(v).rank - offset;
-    if (!layers[rank2]) {
-      layers[rank2] = [];
-    }
-    layers[rank2].push(v);
-  });
-  var delta = 0;
-  var nodeRankFactor = g.graph().nodeRankFactor;
-  forEach(layers, function(vs, i) {
-    if (isUndefined(vs) && i % nodeRankFactor !== 0) {
-      --delta;
-    } else if (delta) {
-      forEach(vs, function(v) {
-        g.node(v).rank += delta;
-      });
-    }
-  });
-}
-function addBorderNode$1(g, prefix, rank2, order2) {
-  var node = {
-    width: 0,
-    height: 0
-  };
-  if (arguments.length >= 4) {
-    node.rank = rank2;
-    node.order = order2;
-  }
-  return addDummyNode(g, "border", node, prefix);
-}
-function maxRank(g) {
-  return max(
-    map(g.nodes(), function(v) {
-      var rank2 = g.node(v).rank;
-      if (!isUndefined(rank2)) {
-        return rank2;
-      }
-    })
-  );
-}
-function partition(collection, fn) {
-  var result = { lhs: [], rhs: [] };
-  forEach(collection, function(value) {
-    if (fn(value)) {
-      result.lhs.push(value);
-    } else {
-      result.rhs.push(value);
-    }
-  });
-  return result;
-}
-function time(name, fn) {
-  var start = now$1();
-  try {
-    return fn();
-  } finally {
-    console.log(name + " time: " + (now$1() - start) + "ms");
-  }
-}
-function notime(name, fn) {
-  return fn();
-}
-function addBorderSegments(g) {
-  function dfs2(v) {
-    var children = g.children(v);
-    var node = g.node(v);
-    if (children.length) {
-      forEach(children, dfs2);
-    }
-    if (has(node, "minRank")) {
-      node.borderLeft = [];
-      node.borderRight = [];
-      for (var rank2 = node.minRank, maxRank2 = node.maxRank + 1; rank2 < maxRank2; ++rank2) {
-        addBorderNode(g, "borderLeft", "_bl", v, node, rank2);
-        addBorderNode(g, "borderRight", "_br", v, node, rank2);
-      }
-    }
-  }
-  forEach(g.children(), dfs2);
-}
-function addBorderNode(g, prop, prefix, sg, sgNode, rank2) {
-  var label = { width: 0, height: 0, rank: rank2, borderType: prop };
-  var prev = sgNode[prop][rank2 - 1];
-  var curr = addDummyNode(g, "border", label, prefix);
-  sgNode[prop][rank2] = curr;
-  g.setParent(curr, sg);
-  if (prev) {
-    g.setEdge(prev, curr, { weight: 1 });
-  }
-}
-function adjust(g) {
-  var rankDir = g.graph().rankdir.toLowerCase();
-  if (rankDir === "lr" || rankDir === "rl") {
-    swapWidthHeight(g);
-  }
-}
-function undo$1(g) {
-  var rankDir = g.graph().rankdir.toLowerCase();
-  if (rankDir === "bt" || rankDir === "rl") {
-    reverseY(g);
-  }
-  if (rankDir === "lr" || rankDir === "rl") {
-    swapXY(g);
-    swapWidthHeight(g);
-  }
-}
-function swapWidthHeight(g) {
-  forEach(g.nodes(), function(v) {
-    swapWidthHeightOne(g.node(v));
-  });
-  forEach(g.edges(), function(e) {
-    swapWidthHeightOne(g.edge(e));
-  });
-}
-function swapWidthHeightOne(attrs) {
-  var w = attrs.width;
-  attrs.width = attrs.height;
-  attrs.height = w;
-}
-function reverseY(g) {
-  forEach(g.nodes(), function(v) {
-    reverseYOne(g.node(v));
-  });
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    forEach(edge.points, reverseYOne);
-    if (has(edge, "y")) {
-      reverseYOne(edge);
-    }
-  });
-}
-function reverseYOne(attrs) {
-  attrs.y = -attrs.y;
-}
-function swapXY(g) {
-  forEach(g.nodes(), function(v) {
-    swapXYOne(g.node(v));
-  });
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    forEach(edge.points, swapXYOne);
-    if (has(edge, "x")) {
-      swapXYOne(edge);
-    }
-  });
-}
-function swapXYOne(attrs) {
-  var x = attrs.x;
-  attrs.x = attrs.y;
-  attrs.y = x;
-}
-function run$1(g) {
-  g.graph().dummyChains = [];
-  forEach(g.edges(), function(edge) {
-    normalizeEdge(g, edge);
-  });
-}
-function normalizeEdge(g, e) {
-  var v = e.v;
-  var vRank = g.node(v).rank;
-  var w = e.w;
-  var wRank = g.node(w).rank;
-  var name = e.name;
-  var edgeLabel = g.edge(e);
-  var labelRank = edgeLabel.labelRank;
-  if (wRank === vRank + 1)
-    return;
-  g.removeEdge(e);
-  var dummy, attrs, i;
-  for (i = 0, ++vRank; vRank < wRank; ++i, ++vRank) {
-    edgeLabel.points = [];
-    attrs = {
-      width: 0,
-      height: 0,
-      edgeLabel,
-      edgeObj: e,
-      rank: vRank
-    };
-    dummy = addDummyNode(g, "edge", attrs, "_d");
-    if (vRank === labelRank) {
-      attrs.width = edgeLabel.width;
-      attrs.height = edgeLabel.height;
-      attrs.dummy = "edge-label";
-      attrs.labelpos = edgeLabel.labelpos;
-    }
-    g.setEdge(v, dummy, { weight: edgeLabel.weight }, name);
-    if (i === 0) {
-      g.graph().dummyChains.push(dummy);
-    }
-    v = dummy;
-  }
-  g.setEdge(v, w, { weight: edgeLabel.weight }, name);
-}
-function undo(g) {
-  forEach(g.graph().dummyChains, function(v) {
-    var node = g.node(v);
-    var origLabel = node.edgeLabel;
-    var w;
-    g.setEdge(node.edgeObj, origLabel);
-    while (node.dummy) {
-      w = g.successors(v)[0];
-      g.removeNode(v);
-      origLabel.points.push({ x: node.x, y: node.y });
-      if (node.dummy === "edge-label") {
-        origLabel.x = node.x;
-        origLabel.y = node.y;
-        origLabel.width = node.width;
-        origLabel.height = node.height;
-      }
-      v = w;
-      node = g.node(v);
-    }
-  });
-}
-function longestPath(g) {
-  var visited = {};
-  function dfs2(v) {
-    var label = g.node(v);
-    if (has(visited, v)) {
-      return label.rank;
-    }
-    visited[v] = true;
-    var rank2 = min(
-      map(g.outEdges(v), function(e) {
-        return dfs2(e.w) - g.edge(e).minlen;
-      })
-    );
-    if (rank2 === Number.POSITIVE_INFINITY || // return value of _.map([]) for Lodash 3
-    rank2 === void 0 || // return value of _.map([]) for Lodash 4
-    rank2 === null) {
-      rank2 = 0;
-    }
-    return label.rank = rank2;
-  }
-  forEach(g.sources(), dfs2);
-}
-function slack(g, e) {
-  return g.node(e.w).rank - g.node(e.v).rank - g.edge(e).minlen;
-}
-function feasibleTree(g) {
-  var t = new Graph({ directed: false });
-  var start = g.nodes()[0];
-  var size = g.nodeCount();
-  t.setNode(start, {});
-  var edge, delta;
-  while (tightTree(t, g) < size) {
-    edge = findMinSlackEdge(t, g);
-    delta = t.hasNode(edge.v) ? slack(g, edge) : -slack(g, edge);
-    shiftRanks(t, g, delta);
-  }
-  return t;
-}
-function tightTree(t, g) {
-  function dfs2(v) {
-    forEach(g.nodeEdges(v), function(e) {
-      var edgeV = e.v, w = v === edgeV ? e.w : edgeV;
-      if (!t.hasNode(w) && !slack(g, e)) {
-        t.setNode(w, {});
-        t.setEdge(v, w, {});
-        dfs2(w);
-      }
-    });
-  }
-  forEach(t.nodes(), dfs2);
-  return t.nodeCount();
-}
-function findMinSlackEdge(t, g) {
-  return minBy(g.edges(), function(e) {
-    if (t.hasNode(e.v) !== t.hasNode(e.w)) {
-      return slack(g, e);
-    }
-  });
-}
-function shiftRanks(t, g, delta) {
-  forEach(t.nodes(), function(v) {
-    g.node(v).rank += delta;
-  });
-}
-function CycleException() {
-}
-CycleException.prototype = new Error();
-function dfs$1(g, vs, order2) {
-  if (!isArray(vs)) {
-    vs = [vs];
-  }
-  var navigation = (g.isDirected() ? g.successors : g.neighbors).bind(g);
-  var acc = [];
-  var visited = {};
-  forEach(vs, function(v) {
-    if (!g.hasNode(v)) {
-      throw new Error("Graph does not have node: " + v);
-    }
-    doDfs(g, v, order2 === "post", visited, navigation, acc);
-  });
-  return acc;
-}
-function doDfs(g, v, postorder2, visited, navigation, acc) {
-  if (!has(visited, v)) {
-    visited[v] = true;
-    if (!postorder2) {
-      acc.push(v);
-    }
-    forEach(navigation(v), function(w) {
-      doDfs(g, w, postorder2, visited, navigation, acc);
-    });
-    if (postorder2) {
-      acc.push(v);
-    }
-  }
-}
-function postorder$1(g, vs) {
-  return dfs$1(g, vs, "post");
-}
-function preorder(g, vs) {
-  return dfs$1(g, vs, "pre");
-}
-networkSimplex.initLowLimValues = initLowLimValues;
-networkSimplex.initCutValues = initCutValues;
-networkSimplex.calcCutValue = calcCutValue;
-networkSimplex.leaveEdge = leaveEdge;
-networkSimplex.enterEdge = enterEdge;
-networkSimplex.exchangeEdges = exchangeEdges;
-function networkSimplex(g) {
-  g = simplify(g);
-  longestPath(g);
-  var t = feasibleTree(g);
-  initLowLimValues(t);
-  initCutValues(t, g);
-  var e, f;
-  while (e = leaveEdge(t)) {
-    f = enterEdge(t, g, e);
-    exchangeEdges(t, g, e, f);
-  }
-}
-function initCutValues(t, g) {
-  var vs = postorder$1(t, t.nodes());
-  vs = vs.slice(0, vs.length - 1);
-  forEach(vs, function(v) {
-    assignCutValue(t, g, v);
-  });
-}
-function assignCutValue(t, g, child) {
-  var childLab = t.node(child);
-  var parent = childLab.parent;
-  t.edge(child, parent).cutvalue = calcCutValue(t, g, child);
-}
-function calcCutValue(t, g, child) {
-  var childLab = t.node(child);
-  var parent = childLab.parent;
-  var childIsTail = true;
-  var graphEdge = g.edge(child, parent);
-  var cutValue = 0;
-  if (!graphEdge) {
-    childIsTail = false;
-    graphEdge = g.edge(parent, child);
-  }
-  cutValue = graphEdge.weight;
-  forEach(g.nodeEdges(child), function(e) {
-    var isOutEdge = e.v === child, other = isOutEdge ? e.w : e.v;
-    if (other !== parent) {
-      var pointsToHead = isOutEdge === childIsTail, otherWeight = g.edge(e).weight;
-      cutValue += pointsToHead ? otherWeight : -otherWeight;
-      if (isTreeEdge(t, child, other)) {
-        var otherCutValue = t.edge(child, other).cutvalue;
-        cutValue += pointsToHead ? -otherCutValue : otherCutValue;
-      }
-    }
-  });
-  return cutValue;
-}
-function initLowLimValues(tree, root2) {
-  if (arguments.length < 2) {
-    root2 = tree.nodes()[0];
-  }
-  dfsAssignLowLim(tree, {}, 1, root2);
-}
-function dfsAssignLowLim(tree, visited, nextLim, v, parent) {
-  var low = nextLim;
-  var label = tree.node(v);
-  visited[v] = true;
-  forEach(tree.neighbors(v), function(w) {
-    if (!has(visited, w)) {
-      nextLim = dfsAssignLowLim(tree, visited, nextLim, w, v);
-    }
-  });
-  label.low = low;
-  label.lim = nextLim++;
-  if (parent) {
-    label.parent = parent;
-  } else {
-    delete label.parent;
-  }
-  return nextLim;
-}
-function leaveEdge(tree) {
-  return find$1(tree.edges(), function(e) {
-    return tree.edge(e).cutvalue < 0;
-  });
-}
-function enterEdge(t, g, edge) {
-  var v = edge.v;
-  var w = edge.w;
-  if (!g.hasEdge(v, w)) {
-    v = edge.w;
-    w = edge.v;
-  }
-  var vLabel = t.node(v);
-  var wLabel = t.node(w);
-  var tailLabel = vLabel;
-  var flip = false;
-  if (vLabel.lim > wLabel.lim) {
-    tailLabel = wLabel;
-    flip = true;
-  }
-  var candidates = filter(g.edges(), function(edge2) {
-    return flip === isDescendant(t, t.node(edge2.v), tailLabel) && flip !== isDescendant(t, t.node(edge2.w), tailLabel);
-  });
-  return minBy(candidates, function(edge2) {
-    return slack(g, edge2);
-  });
-}
-function exchangeEdges(t, g, e, f) {
-  var v = e.v;
-  var w = e.w;
-  t.removeEdge(v, w);
-  t.setEdge(f.v, f.w, {});
-  initLowLimValues(t);
-  initCutValues(t, g);
-  updateRanks(t, g);
-}
-function updateRanks(t, g) {
-  var root2 = find$1(t.nodes(), function(v) {
-    return !g.node(v).parent;
-  });
-  var vs = preorder(t, root2);
-  vs = vs.slice(1);
-  forEach(vs, function(v) {
-    var parent = t.node(v).parent, edge = g.edge(v, parent), flipped = false;
-    if (!edge) {
-      edge = g.edge(parent, v);
-      flipped = true;
-    }
-    g.node(v).rank = g.node(parent).rank + (flipped ? edge.minlen : -edge.minlen);
-  });
-}
-function isTreeEdge(tree, u, v) {
-  return tree.hasEdge(u, v);
-}
-function isDescendant(tree, vLabel, rootLabel) {
-  return rootLabel.low <= vLabel.lim && vLabel.lim <= rootLabel.lim;
-}
-function rank(g) {
-  switch (g.graph().ranker) {
-    case "network-simplex":
-      networkSimplexRanker(g);
-      break;
-    case "tight-tree":
-      tightTreeRanker(g);
-      break;
-    case "longest-path":
-      longestPathRanker(g);
-      break;
-    default:
-      networkSimplexRanker(g);
-  }
-}
-var longestPathRanker = longestPath;
-function tightTreeRanker(g) {
-  longestPath(g);
-  feasibleTree(g);
-}
-function networkSimplexRanker(g) {
-  networkSimplex(g);
-}
-function run(g) {
-  var root2 = addDummyNode(g, "root", {}, "_root");
-  var depths = treeDepths(g);
-  var height = max(values(depths)) - 1;
-  var nodeSep = 2 * height + 1;
-  g.graph().nestingRoot = root2;
-  forEach(g.edges(), function(e) {
-    g.edge(e).minlen *= nodeSep;
-  });
-  var weight = sumWeights(g) + 1;
-  forEach(g.children(), function(child) {
-    dfs(g, root2, nodeSep, weight, height, depths, child);
-  });
-  g.graph().nodeRankFactor = nodeSep;
-}
-function dfs(g, root2, nodeSep, weight, height, depths, v) {
-  var children = g.children(v);
-  if (!children.length) {
-    if (v !== root2) {
-      g.setEdge(root2, v, { weight: 0, minlen: nodeSep });
-    }
-    return;
-  }
-  var top = addBorderNode$1(g, "_bt");
-  var bottom = addBorderNode$1(g, "_bb");
-  var label = g.node(v);
-  g.setParent(top, v);
-  label.borderTop = top;
-  g.setParent(bottom, v);
-  label.borderBottom = bottom;
-  forEach(children, function(child) {
-    dfs(g, root2, nodeSep, weight, height, depths, child);
-    var childNode = g.node(child);
-    var childTop = childNode.borderTop ? childNode.borderTop : child;
-    var childBottom = childNode.borderBottom ? childNode.borderBottom : child;
-    var thisWeight = childNode.borderTop ? weight : 2 * weight;
-    var minlen = childTop !== childBottom ? 1 : height - depths[v] + 1;
-    g.setEdge(top, childTop, {
-      weight: thisWeight,
-      minlen,
-      nestingEdge: true
-    });
-    g.setEdge(childBottom, bottom, {
-      weight: thisWeight,
-      minlen,
-      nestingEdge: true
-    });
-  });
-  if (!g.parent(v)) {
-    g.setEdge(root2, top, { weight: 0, minlen: height + depths[v] });
-  }
-}
-function treeDepths(g) {
-  var depths = {};
-  function dfs2(v, depth) {
-    var children = g.children(v);
-    if (children && children.length) {
-      forEach(children, function(child) {
-        dfs2(child, depth + 1);
-      });
-    }
-    depths[v] = depth;
-  }
-  forEach(g.children(), function(v) {
-    dfs2(v, 1);
-  });
-  return depths;
-}
-function sumWeights(g) {
-  return reduce(
-    g.edges(),
-    function(acc, e) {
-      return acc + g.edge(e).weight;
-    },
-    0
-  );
-}
-function cleanup(g) {
-  var graphLabel = g.graph();
-  g.removeNode(graphLabel.nestingRoot);
-  delete graphLabel.nestingRoot;
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    if (edge.nestingEdge) {
-      g.removeEdge(e);
-    }
-  });
-}
-function addSubgraphConstraints(g, cg, vs) {
-  var prev = {}, rootPrev;
-  forEach(vs, function(v) {
-    var child = g.parent(v), parent, prevChild;
-    while (child) {
-      parent = g.parent(child);
-      if (parent) {
-        prevChild = prev[parent];
-        prev[parent] = child;
-      } else {
-        prevChild = rootPrev;
-        rootPrev = child;
-      }
-      if (prevChild && prevChild !== child) {
-        cg.setEdge(prevChild, child);
-        return;
-      }
-      child = parent;
-    }
-  });
-}
-function buildLayerGraph(g, rank2, relationship) {
-  var root2 = createRootNode(g), result = new Graph({ compound: true }).setGraph({ root: root2 }).setDefaultNodeLabel(function(v) {
-    return g.node(v);
-  });
-  forEach(g.nodes(), function(v) {
-    var node = g.node(v), parent = g.parent(v);
-    if (node.rank === rank2 || node.minRank <= rank2 && rank2 <= node.maxRank) {
-      result.setNode(v);
-      result.setParent(v, parent || root2);
-      forEach(g[relationship](v), function(e) {
-        var u = e.v === v ? e.w : e.v, edge = result.edge(u, v), weight = !isUndefined(edge) ? edge.weight : 0;
-        result.setEdge(u, v, { weight: g.edge(e).weight + weight });
-      });
-      if (has(node, "minRank")) {
-        result.setNode(v, {
-          borderLeft: node.borderLeft[rank2],
-          borderRight: node.borderRight[rank2]
-        });
-      }
-    }
-  });
-  return result;
-}
-function createRootNode(g) {
-  var v;
-  while (g.hasNode(v = uniqueId("_root")))
-    ;
-  return v;
-}
-function crossCount(g, layering) {
-  var cc = 0;
-  for (var i = 1; i < layering.length; ++i) {
-    cc += twoLayerCrossCount(g, layering[i - 1], layering[i]);
-  }
-  return cc;
-}
-function twoLayerCrossCount(g, northLayer, southLayer) {
-  var southPos = zipObject(
-    southLayer,
-    map(southLayer, function(v, i) {
-      return i;
-    })
-  );
-  var southEntries = flatten(
-    map(northLayer, function(v) {
-      return sortBy$1(
-        map(g.outEdges(v), function(e) {
-          return { pos: southPos[e.w], weight: g.edge(e).weight };
-        }),
-        "pos"
-      );
-    })
-  );
-  var firstIndex = 1;
-  while (firstIndex < southLayer.length)
-    firstIndex <<= 1;
-  var treeSize = 2 * firstIndex - 1;
-  firstIndex -= 1;
-  var tree = map(new Array(treeSize), function() {
-    return 0;
-  });
-  var cc = 0;
-  forEach(
-    // @ts-expect-error
-    southEntries.forEach(function(entry) {
-      var index = entry.pos + firstIndex;
-      tree[index] += entry.weight;
-      var weightSum = 0;
-      while (index > 0) {
-        if (index % 2) {
-          weightSum += tree[index + 1];
-        }
-        index = index - 1 >> 1;
-        tree[index] += entry.weight;
-      }
-      cc += entry.weight * weightSum;
-    })
-  );
-  return cc;
-}
-function initOrder(g) {
-  var visited = {};
-  var simpleNodes = filter(g.nodes(), function(v) {
-    return !g.children(v).length;
-  });
-  var maxRank2 = max(
-    map(simpleNodes, function(v) {
-      return g.node(v).rank;
-    })
-  );
-  var layers = map(range$1(maxRank2 + 1), function() {
-    return [];
-  });
-  function dfs2(v) {
-    if (has(visited, v))
-      return;
-    visited[v] = true;
-    var node = g.node(v);
-    layers[node.rank].push(v);
-    forEach(g.successors(v), dfs2);
-  }
-  var orderedVs = sortBy$1(simpleNodes, function(v) {
-    return g.node(v).rank;
-  });
-  forEach(orderedVs, dfs2);
-  return layers;
-}
-function barycenter(g, movable) {
-  return map(movable, function(v) {
-    var inV = g.inEdges(v);
-    if (!inV.length) {
-      return { v };
-    } else {
-      var result = reduce(
-        inV,
-        function(acc, e) {
-          var edge = g.edge(e), nodeU = g.node(e.v);
-          return {
-            sum: acc.sum + edge.weight * nodeU.order,
-            weight: acc.weight + edge.weight
-          };
-        },
-        { sum: 0, weight: 0 }
-      );
-      return {
-        v,
-        barycenter: result.sum / result.weight,
-        weight: result.weight
-      };
-    }
-  });
-}
-function resolveConflicts(entries, cg) {
-  var mappedEntries = {};
-  forEach(entries, function(entry, i) {
-    var tmp = mappedEntries[entry.v] = {
-      indegree: 0,
-      in: [],
-      out: [],
-      vs: [entry.v],
-      i
-    };
-    if (!isUndefined(entry.barycenter)) {
-      tmp.barycenter = entry.barycenter;
-      tmp.weight = entry.weight;
-    }
-  });
-  forEach(cg.edges(), function(e) {
-    var entryV = mappedEntries[e.v];
-    var entryW = mappedEntries[e.w];
-    if (!isUndefined(entryV) && !isUndefined(entryW)) {
-      entryW.indegree++;
-      entryV.out.push(mappedEntries[e.w]);
-    }
-  });
-  var sourceSet = filter(mappedEntries, function(entry) {
-    return !entry.indegree;
-  });
-  return doResolveConflicts(sourceSet);
-}
-function doResolveConflicts(sourceSet) {
-  var entries = [];
-  function handleIn(vEntry) {
-    return function(uEntry) {
-      if (uEntry.merged) {
-        return;
-      }
-      if (isUndefined(uEntry.barycenter) || isUndefined(vEntry.barycenter) || uEntry.barycenter >= vEntry.barycenter) {
-        mergeEntries(vEntry, uEntry);
-      }
-    };
-  }
-  function handleOut(vEntry) {
-    return function(wEntry) {
-      wEntry["in"].push(vEntry);
-      if (--wEntry.indegree === 0) {
-        sourceSet.push(wEntry);
-      }
-    };
-  }
-  while (sourceSet.length) {
-    var entry = sourceSet.pop();
-    entries.push(entry);
-    forEach(entry["in"].reverse(), handleIn(entry));
-    forEach(entry.out, handleOut(entry));
-  }
-  return map(
-    filter(entries, function(entry2) {
-      return !entry2.merged;
-    }),
-    function(entry2) {
-      return pick$1(entry2, ["vs", "i", "barycenter", "weight"]);
-    }
-  );
-}
-function mergeEntries(target, source) {
-  var sum = 0;
-  var weight = 0;
-  if (target.weight) {
-    sum += target.barycenter * target.weight;
-    weight += target.weight;
-  }
-  if (source.weight) {
-    sum += source.barycenter * source.weight;
-    weight += source.weight;
-  }
-  target.vs = source.vs.concat(target.vs);
-  target.barycenter = sum / weight;
-  target.weight = weight;
-  target.i = Math.min(source.i, target.i);
-  source.merged = true;
-}
-function sort(entries, biasRight) {
-  var parts = partition(entries, function(entry) {
-    return has(entry, "barycenter");
-  });
-  var sortable = parts.lhs, unsortable = sortBy$1(parts.rhs, function(entry) {
-    return -entry.i;
-  }), vs = [], sum = 0, weight = 0, vsIndex = 0;
-  sortable.sort(compareWithBias(!!biasRight));
-  vsIndex = consumeUnsortable(vs, unsortable, vsIndex);
-  forEach(sortable, function(entry) {
-    vsIndex += entry.vs.length;
-    vs.push(entry.vs);
-    sum += entry.barycenter * entry.weight;
-    weight += entry.weight;
-    vsIndex = consumeUnsortable(vs, unsortable, vsIndex);
-  });
-  var result = { vs: flatten(vs) };
-  if (weight) {
-    result.barycenter = sum / weight;
-    result.weight = weight;
-  }
-  return result;
-}
-function consumeUnsortable(vs, unsortable, index) {
-  var last$1;
-  while (unsortable.length && (last$1 = last(unsortable)).i <= index) {
-    unsortable.pop();
-    vs.push(last$1.vs);
-    index++;
-  }
-  return index;
-}
-function compareWithBias(bias) {
-  return function(entryV, entryW) {
-    if (entryV.barycenter < entryW.barycenter) {
-      return -1;
-    } else if (entryV.barycenter > entryW.barycenter) {
-      return 1;
-    }
-    return !bias ? entryV.i - entryW.i : entryW.i - entryV.i;
-  };
-}
-function sortSubgraph(g, v, cg, biasRight) {
-  var movable = g.children(v);
-  var node = g.node(v);
-  var bl = node ? node.borderLeft : void 0;
-  var br = node ? node.borderRight : void 0;
-  var subgraphs = {};
-  if (bl) {
-    movable = filter(movable, function(w) {
-      return w !== bl && w !== br;
-    });
-  }
-  var barycenters = barycenter(g, movable);
-  forEach(barycenters, function(entry) {
-    if (g.children(entry.v).length) {
-      var subgraphResult = sortSubgraph(g, entry.v, cg, biasRight);
-      subgraphs[entry.v] = subgraphResult;
-      if (has(subgraphResult, "barycenter")) {
-        mergeBarycenters(entry, subgraphResult);
-      }
-    }
-  });
-  var entries = resolveConflicts(barycenters, cg);
-  expandSubgraphs(entries, subgraphs);
-  var result = sort(entries, biasRight);
-  if (bl) {
-    result.vs = flatten([bl, result.vs, br]);
-    if (g.predecessors(bl).length) {
-      var blPred = g.node(g.predecessors(bl)[0]), brPred = g.node(g.predecessors(br)[0]);
-      if (!has(result, "barycenter")) {
-        result.barycenter = 0;
-        result.weight = 0;
-      }
-      result.barycenter = (result.barycenter * result.weight + blPred.order + brPred.order) / (result.weight + 2);
-      result.weight += 2;
-    }
-  }
-  return result;
-}
-function expandSubgraphs(entries, subgraphs) {
-  forEach(entries, function(entry) {
-    entry.vs = flatten(
-      entry.vs.map(function(v) {
-        if (subgraphs[v]) {
-          return subgraphs[v].vs;
-        }
-        return v;
-      })
-    );
-  });
-}
-function mergeBarycenters(target, other) {
-  if (!isUndefined(target.barycenter)) {
-    target.barycenter = (target.barycenter * target.weight + other.barycenter * other.weight) / (target.weight + other.weight);
-    target.weight += other.weight;
-  } else {
-    target.barycenter = other.barycenter;
-    target.weight = other.weight;
-  }
-}
-function order(g) {
-  var maxRank$1 = maxRank(g), downLayerGraphs = buildLayerGraphs(g, range$1(1, maxRank$1 + 1), "inEdges"), upLayerGraphs = buildLayerGraphs(g, range$1(maxRank$1 - 1, -1, -1), "outEdges");
-  var layering = initOrder(g);
-  assignOrder(g, layering);
-  var bestCC = Number.POSITIVE_INFINITY, best;
-  for (var i = 0, lastBest = 0; lastBest < 4; ++i, ++lastBest) {
-    sweepLayerGraphs(i % 2 ? downLayerGraphs : upLayerGraphs, i % 4 >= 2);
-    layering = buildLayerMatrix(g);
-    var cc = crossCount(g, layering);
-    if (cc < bestCC) {
-      lastBest = 0;
-      best = cloneDeep(layering);
-      bestCC = cc;
-    }
-  }
-  assignOrder(g, best);
-}
-function buildLayerGraphs(g, ranks, relationship) {
-  return map(ranks, function(rank2) {
-    return buildLayerGraph(g, rank2, relationship);
-  });
-}
-function sweepLayerGraphs(layerGraphs, biasRight) {
-  var cg = new Graph();
-  forEach(layerGraphs, function(lg) {
-    var root2 = lg.graph().root;
-    var sorted = sortSubgraph(lg, root2, cg, biasRight);
-    forEach(sorted.vs, function(v, i) {
-      lg.node(v).order = i;
-    });
-    addSubgraphConstraints(lg, cg, sorted.vs);
-  });
-}
-function assignOrder(g, layering) {
-  forEach(layering, function(layer) {
-    forEach(layer, function(v, i) {
-      g.node(v).order = i;
-    });
-  });
-}
-function parentDummyChains(g) {
-  var postorderNums = postorder(g);
-  forEach(g.graph().dummyChains, function(v) {
-    var node = g.node(v);
-    var edgeObj = node.edgeObj;
-    var pathData = findPath(g, postorderNums, edgeObj.v, edgeObj.w);
-    var path = pathData.path;
-    var lca = pathData.lca;
-    var pathIdx = 0;
-    var pathV = path[pathIdx];
-    var ascending = true;
-    while (v !== edgeObj.w) {
-      node = g.node(v);
-      if (ascending) {
-        while ((pathV = path[pathIdx]) !== lca && g.node(pathV).maxRank < node.rank) {
-          pathIdx++;
-        }
-        if (pathV === lca) {
-          ascending = false;
-        }
-      }
-      if (!ascending) {
-        while (pathIdx < path.length - 1 && g.node(pathV = path[pathIdx + 1]).minRank <= node.rank) {
-          pathIdx++;
-        }
-        pathV = path[pathIdx];
-      }
-      g.setParent(v, pathV);
-      v = g.successors(v)[0];
-    }
-  });
-}
-function findPath(g, postorderNums, v, w) {
-  var vPath = [];
-  var wPath = [];
-  var low = Math.min(postorderNums[v].low, postorderNums[w].low);
-  var lim = Math.max(postorderNums[v].lim, postorderNums[w].lim);
-  var parent;
-  var lca;
-  parent = v;
-  do {
-    parent = g.parent(parent);
-    vPath.push(parent);
-  } while (parent && (postorderNums[parent].low > low || lim > postorderNums[parent].lim));
-  lca = parent;
-  parent = w;
-  while ((parent = g.parent(parent)) !== lca) {
-    wPath.push(parent);
-  }
-  return { path: vPath.concat(wPath.reverse()), lca };
-}
-function postorder(g) {
-  var result = {};
-  var lim = 0;
-  function dfs2(v) {
-    var low = lim;
-    forEach(g.children(v), dfs2);
-    result[v] = { low, lim: lim++ };
-  }
-  forEach(g.children(), dfs2);
-  return result;
-}
-function findType1Conflicts(g, layering) {
-  var conflicts = {};
-  function visitLayer(prevLayer, layer) {
-    var k0 = 0, scanPos = 0, prevLayerLength = prevLayer.length, lastNode = last(layer);
-    forEach(layer, function(v, i) {
-      var w = findOtherInnerSegmentNode(g, v), k1 = w ? g.node(w).order : prevLayerLength;
-      if (w || v === lastNode) {
-        forEach(layer.slice(scanPos, i + 1), function(scanNode) {
-          forEach(g.predecessors(scanNode), function(u) {
-            var uLabel = g.node(u), uPos = uLabel.order;
-            if ((uPos < k0 || k1 < uPos) && !(uLabel.dummy && g.node(scanNode).dummy)) {
-              addConflict(conflicts, u, scanNode);
-            }
-          });
-        });
-        scanPos = i + 1;
-        k0 = k1;
-      }
-    });
-    return layer;
-  }
-  reduce(layering, visitLayer);
-  return conflicts;
-}
-function findType2Conflicts(g, layering) {
-  var conflicts = {};
-  function scan(south, southPos, southEnd, prevNorthBorder, nextNorthBorder) {
-    var v;
-    forEach(range$1(southPos, southEnd), function(i) {
-      v = south[i];
-      if (g.node(v).dummy) {
-        forEach(g.predecessors(v), function(u) {
-          var uNode = g.node(u);
-          if (uNode.dummy && (uNode.order < prevNorthBorder || uNode.order > nextNorthBorder)) {
-            addConflict(conflicts, u, v);
-          }
-        });
-      }
-    });
-  }
-  function visitLayer(north, south) {
-    var prevNorthPos = -1, nextNorthPos, southPos = 0;
-    forEach(south, function(v, southLookahead) {
-      if (g.node(v).dummy === "border") {
-        var predecessors = g.predecessors(v);
-        if (predecessors.length) {
-          nextNorthPos = g.node(predecessors[0]).order;
-          scan(south, southPos, southLookahead, prevNorthPos, nextNorthPos);
-          southPos = southLookahead;
-          prevNorthPos = nextNorthPos;
-        }
-      }
-      scan(south, southPos, south.length, nextNorthPos, north.length);
-    });
-    return south;
-  }
-  reduce(layering, visitLayer);
-  return conflicts;
-}
-function findOtherInnerSegmentNode(g, v) {
-  if (g.node(v).dummy) {
-    return find$1(g.predecessors(v), function(u) {
-      return g.node(u).dummy;
-    });
-  }
-}
-function addConflict(conflicts, v, w) {
-  if (v > w) {
-    var tmp = v;
-    v = w;
-    w = tmp;
-  }
-  var conflictsV = conflicts[v];
-  if (!conflictsV) {
-    conflicts[v] = conflictsV = {};
-  }
-  conflictsV[w] = true;
-}
-function hasConflict(conflicts, v, w) {
-  if (v > w) {
-    var tmp = v;
-    v = w;
-    w = tmp;
-  }
-  return has(conflicts[v], w);
-}
-function verticalAlignment(g, layering, conflicts, neighborFn) {
-  var root2 = {}, align = {}, pos = {};
-  forEach(layering, function(layer) {
-    forEach(layer, function(v, order2) {
-      root2[v] = v;
-      align[v] = v;
-      pos[v] = order2;
-    });
-  });
-  forEach(layering, function(layer) {
-    var prevIdx = -1;
-    forEach(layer, function(v) {
-      var ws = neighborFn(v);
-      if (ws.length) {
-        ws = sortBy$1(ws, function(w2) {
-          return pos[w2];
-        });
-        var mp = (ws.length - 1) / 2;
-        for (var i = Math.floor(mp), il = Math.ceil(mp); i <= il; ++i) {
-          var w = ws[i];
-          if (align[v] === v && prevIdx < pos[w] && !hasConflict(conflicts, v, w)) {
-            align[w] = v;
-            align[v] = root2[v] = root2[w];
-            prevIdx = pos[w];
-          }
-        }
-      }
-    });
-  });
-  return { root: root2, align };
-}
-function horizontalCompaction(g, layering, root2, align, reverseSep) {
-  var xs = {}, blockG = buildBlockGraph(g, layering, root2, reverseSep), borderType = reverseSep ? "borderLeft" : "borderRight";
-  function iterate(setXsFunc, nextNodesFunc) {
-    var stack = blockG.nodes();
-    var elem = stack.pop();
-    var visited = {};
-    while (elem) {
-      if (visited[elem]) {
-        setXsFunc(elem);
-      } else {
-        visited[elem] = true;
-        stack.push(elem);
-        stack = stack.concat(nextNodesFunc(elem));
-      }
-      elem = stack.pop();
-    }
-  }
-  function pass1(elem) {
-    xs[elem] = blockG.inEdges(elem).reduce(function(acc, e) {
-      return Math.max(acc, xs[e.v] + blockG.edge(e));
-    }, 0);
-  }
-  function pass2(elem) {
-    var min2 = blockG.outEdges(elem).reduce(function(acc, e) {
-      return Math.min(acc, xs[e.w] - blockG.edge(e));
-    }, Number.POSITIVE_INFINITY);
-    var node = g.node(elem);
-    if (min2 !== Number.POSITIVE_INFINITY && node.borderType !== borderType) {
-      xs[elem] = Math.max(xs[elem], min2);
-    }
-  }
-  iterate(pass1, blockG.predecessors.bind(blockG));
-  iterate(pass2, blockG.successors.bind(blockG));
-  forEach(align, function(v) {
-    xs[v] = xs[root2[v]];
-  });
-  return xs;
-}
-function buildBlockGraph(g, layering, root2, reverseSep) {
-  var blockGraph = new Graph(), graphLabel = g.graph(), sepFn = sep(graphLabel.nodesep, graphLabel.edgesep, reverseSep);
-  forEach(layering, function(layer) {
-    var u;
-    forEach(layer, function(v) {
-      var vRoot = root2[v];
-      blockGraph.setNode(vRoot);
-      if (u) {
-        var uRoot = root2[u], prevMax = blockGraph.edge(uRoot, vRoot);
-        blockGraph.setEdge(uRoot, vRoot, Math.max(sepFn(g, v, u), prevMax || 0));
-      }
-      u = v;
-    });
-  });
-  return blockGraph;
-}
-function findSmallestWidthAlignment(g, xss) {
-  return minBy(values(xss), function(xs) {
-    var max2 = Number.NEGATIVE_INFINITY;
-    var min2 = Number.POSITIVE_INFINITY;
-    forIn(xs, function(x, v) {
-      var halfWidth = width(g, v) / 2;
-      max2 = Math.max(x + halfWidth, max2);
-      min2 = Math.min(x - halfWidth, min2);
-    });
-    return max2 - min2;
-  });
-}
-function alignCoordinates(xss, alignTo) {
-  var alignToVals = values(alignTo), alignToMin = min(alignToVals), alignToMax = max(alignToVals);
-  forEach(["u", "d"], function(vert) {
-    forEach(["l", "r"], function(horiz) {
-      var alignment = vert + horiz, xs = xss[alignment], delta;
-      if (xs === alignTo)
-        return;
-      var xsVals = values(xs);
-      delta = horiz === "l" ? alignToMin - min(xsVals) : alignToMax - max(xsVals);
-      if (delta) {
-        xss[alignment] = mapValues(xs, function(x) {
-          return x + delta;
-        });
-      }
-    });
-  });
-}
-function balance(xss, align) {
-  return mapValues(xss.ul, function(ignore, v) {
-    if (align) {
-      return xss[align.toLowerCase()][v];
-    } else {
-      var xs = sortBy$1(map(xss, v));
-      return (xs[1] + xs[2]) / 2;
-    }
-  });
-}
-function positionX(g) {
-  var layering = buildLayerMatrix(g);
-  var conflicts = merge(findType1Conflicts(g, layering), findType2Conflicts(g, layering));
-  var xss = {};
-  var adjustedLayering;
-  forEach(["u", "d"], function(vert) {
-    adjustedLayering = vert === "u" ? layering : values(layering).reverse();
-    forEach(["l", "r"], function(horiz) {
-      if (horiz === "r") {
-        adjustedLayering = map(adjustedLayering, function(inner) {
-          return values(inner).reverse();
-        });
-      }
-      var neighborFn = (vert === "u" ? g.predecessors : g.successors).bind(g);
-      var align = verticalAlignment(g, adjustedLayering, conflicts, neighborFn);
-      var xs = horizontalCompaction(g, adjustedLayering, align.root, align.align, horiz === "r");
-      if (horiz === "r") {
-        xs = mapValues(xs, function(x) {
-          return -x;
-        });
-      }
-      xss[vert + horiz] = xs;
-    });
-  });
-  var smallestWidth = findSmallestWidthAlignment(g, xss);
-  alignCoordinates(xss, smallestWidth);
-  return balance(xss, g.graph().align);
-}
-function sep(nodeSep, edgeSep, reverseSep) {
-  return function(g, v, w) {
-    var vLabel = g.node(v);
-    var wLabel = g.node(w);
-    var sum = 0;
-    var delta;
-    sum += vLabel.width / 2;
-    if (has(vLabel, "labelpos")) {
-      switch (vLabel.labelpos.toLowerCase()) {
-        case "l":
-          delta = -vLabel.width / 2;
-          break;
-        case "r":
-          delta = vLabel.width / 2;
-          break;
-      }
-    }
-    if (delta) {
-      sum += reverseSep ? delta : -delta;
-    }
-    delta = 0;
-    sum += (vLabel.dummy ? edgeSep : nodeSep) / 2;
-    sum += (wLabel.dummy ? edgeSep : nodeSep) / 2;
-    sum += wLabel.width / 2;
-    if (has(wLabel, "labelpos")) {
-      switch (wLabel.labelpos.toLowerCase()) {
-        case "l":
-          delta = wLabel.width / 2;
-          break;
-        case "r":
-          delta = -wLabel.width / 2;
-          break;
-      }
-    }
-    if (delta) {
-      sum += reverseSep ? delta : -delta;
-    }
-    delta = 0;
-    return sum;
-  };
-}
-function width(g, v) {
-  return g.node(v).width;
-}
-function position(g) {
-  g = asNonCompoundGraph(g);
-  positionY(g);
-  forOwn(positionX(g), function(x, v) {
-    g.node(v).x = x;
-  });
-}
-function positionY(g) {
-  var layering = buildLayerMatrix(g);
-  var rankSep = g.graph().ranksep;
-  var prevY = 0;
-  forEach(layering, function(layer) {
-    var maxHeight = max(
-      map(layer, function(v) {
-        return g.node(v).height;
-      })
-    );
-    forEach(layer, function(v) {
-      g.node(v).y = prevY + maxHeight / 2;
-    });
-    prevY += maxHeight + rankSep;
-  });
-}
-function layout(g, opts) {
-  var time$1 = opts && opts.debugTiming ? time : notime;
-  time$1("layout", function() {
-    var layoutGraph = time$1("  buildLayoutGraph", function() {
-      return buildLayoutGraph(g);
-    });
-    time$1("  runLayout", function() {
-      runLayout(layoutGraph, time$1);
-    });
-    time$1("  updateInputGraph", function() {
-      updateInputGraph(g, layoutGraph);
-    });
-  });
-}
-function runLayout(g, time2) {
-  time2("    makeSpaceForEdgeLabels", function() {
-    makeSpaceForEdgeLabels(g);
-  });
-  time2("    removeSelfEdges", function() {
-    removeSelfEdges(g);
-  });
-  time2("    acyclic", function() {
-    run$2(g);
-  });
-  time2("    nestingGraph.run", function() {
-    run(g);
-  });
-  time2("    rank", function() {
-    rank(asNonCompoundGraph(g));
-  });
-  time2("    injectEdgeLabelProxies", function() {
-    injectEdgeLabelProxies(g);
-  });
-  time2("    removeEmptyRanks", function() {
-    removeEmptyRanks(g);
-  });
-  time2("    nestingGraph.cleanup", function() {
-    cleanup(g);
-  });
-  time2("    normalizeRanks", function() {
-    normalizeRanks(g);
-  });
-  time2("    assignRankMinMax", function() {
-    assignRankMinMax(g);
-  });
-  time2("    removeEdgeLabelProxies", function() {
-    removeEdgeLabelProxies(g);
-  });
-  time2("    normalize.run", function() {
-    run$1(g);
-  });
-  time2("    parentDummyChains", function() {
-    parentDummyChains(g);
-  });
-  time2("    addBorderSegments", function() {
-    addBorderSegments(g);
-  });
-  time2("    order", function() {
-    order(g);
-  });
-  time2("    insertSelfEdges", function() {
-    insertSelfEdges(g);
-  });
-  time2("    adjustCoordinateSystem", function() {
-    adjust(g);
-  });
-  time2("    position", function() {
-    position(g);
-  });
-  time2("    positionSelfEdges", function() {
-    positionSelfEdges(g);
-  });
-  time2("    removeBorderNodes", function() {
-    removeBorderNodes(g);
-  });
-  time2("    normalize.undo", function() {
-    undo(g);
-  });
-  time2("    fixupEdgeLabelCoords", function() {
-    fixupEdgeLabelCoords(g);
-  });
-  time2("    undoCoordinateSystem", function() {
-    undo$1(g);
-  });
-  time2("    translateGraph", function() {
-    translateGraph(g);
-  });
-  time2("    assignNodeIntersects", function() {
-    assignNodeIntersects(g);
-  });
-  time2("    reversePoints", function() {
-    reversePointsForReversedEdges(g);
-  });
-  time2("    acyclic.undo", function() {
-    undo$2(g);
-  });
-}
-function updateInputGraph(inputGraph, layoutGraph) {
-  forEach(inputGraph.nodes(), function(v) {
-    var inputLabel = inputGraph.node(v);
-    var layoutLabel = layoutGraph.node(v);
-    if (inputLabel) {
-      inputLabel.x = layoutLabel.x;
-      inputLabel.y = layoutLabel.y;
-      if (layoutGraph.children(v).length) {
-        inputLabel.width = layoutLabel.width;
-        inputLabel.height = layoutLabel.height;
-      }
-    }
-  });
-  forEach(inputGraph.edges(), function(e) {
-    var inputLabel = inputGraph.edge(e);
-    var layoutLabel = layoutGraph.edge(e);
-    inputLabel.points = layoutLabel.points;
-    if (has(layoutLabel, "x")) {
-      inputLabel.x = layoutLabel.x;
-      inputLabel.y = layoutLabel.y;
-    }
-  });
-  inputGraph.graph().width = layoutGraph.graph().width;
-  inputGraph.graph().height = layoutGraph.graph().height;
-}
-var graphNumAttrs = ["nodesep", "edgesep", "ranksep", "marginx", "marginy"];
-var graphDefaults = { ranksep: 50, edgesep: 20, nodesep: 50, rankdir: "tb" };
-var graphAttrs = ["acyclicer", "ranker", "rankdir", "align"];
-var nodeNumAttrs = ["width", "height"];
-var nodeDefaults = { width: 0, height: 0 };
-var edgeNumAttrs = ["minlen", "weight", "width", "height", "labeloffset"];
-var edgeDefaults = {
-  minlen: 1,
-  weight: 1,
-  width: 0,
-  height: 0,
-  labeloffset: 10,
-  labelpos: "r"
-};
-var edgeAttrs = ["labelpos"];
-function buildLayoutGraph(inputGraph) {
-  var g = new Graph({ multigraph: true, compound: true });
-  var graph = canonicalize(inputGraph.graph());
-  g.setGraph(
-    merge({}, graphDefaults, selectNumberAttrs(graph, graphNumAttrs), pick$1(graph, graphAttrs))
-  );
-  forEach(inputGraph.nodes(), function(v) {
-    var node = canonicalize(inputGraph.node(v));
-    g.setNode(v, defaults$1(selectNumberAttrs(node, nodeNumAttrs), nodeDefaults));
-    g.setParent(v, inputGraph.parent(v));
-  });
-  forEach(inputGraph.edges(), function(e) {
-    var edge = canonicalize(inputGraph.edge(e));
-    g.setEdge(
-      e,
-      merge({}, edgeDefaults, selectNumberAttrs(edge, edgeNumAttrs), pick$1(edge, edgeAttrs))
-    );
-  });
-  return g;
-}
-function makeSpaceForEdgeLabels(g) {
-  var graph = g.graph();
-  graph.ranksep /= 2;
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    edge.minlen *= 2;
-    if (edge.labelpos.toLowerCase() !== "c") {
-      if (graph.rankdir === "TB" || graph.rankdir === "BT") {
-        edge.width += edge.labeloffset;
-      } else {
-        edge.height += edge.labeloffset;
-      }
-    }
-  });
-}
-function injectEdgeLabelProxies(g) {
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    if (edge.width && edge.height) {
-      var v = g.node(e.v);
-      var w = g.node(e.w);
-      var label = { rank: (w.rank - v.rank) / 2 + v.rank, e };
-      addDummyNode(g, "edge-proxy", label, "_ep");
-    }
-  });
-}
-function assignRankMinMax(g) {
-  var maxRank2 = 0;
-  forEach(g.nodes(), function(v) {
-    var node = g.node(v);
-    if (node.borderTop) {
-      node.minRank = g.node(node.borderTop).rank;
-      node.maxRank = g.node(node.borderBottom).rank;
-      maxRank2 = max(maxRank2, node.maxRank);
-    }
-  });
-  g.graph().maxRank = maxRank2;
-}
-function removeEdgeLabelProxies(g) {
-  forEach(g.nodes(), function(v) {
-    var node = g.node(v);
-    if (node.dummy === "edge-proxy") {
-      g.edge(node.e).labelRank = node.rank;
-      g.removeNode(v);
-    }
-  });
-}
-function translateGraph(g) {
-  var minX = Number.POSITIVE_INFINITY;
-  var maxX = 0;
-  var minY = Number.POSITIVE_INFINITY;
-  var maxY = 0;
-  var graphLabel = g.graph();
-  var marginX = graphLabel.marginx || 0;
-  var marginY = graphLabel.marginy || 0;
-  function getExtremes(attrs) {
-    var x = attrs.x;
-    var y = attrs.y;
-    var w = attrs.width;
-    var h = attrs.height;
-    minX = Math.min(minX, x - w / 2);
-    maxX = Math.max(maxX, x + w / 2);
-    minY = Math.min(minY, y - h / 2);
-    maxY = Math.max(maxY, y + h / 2);
-  }
-  forEach(g.nodes(), function(v) {
-    getExtremes(g.node(v));
-  });
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    if (has(edge, "x")) {
-      getExtremes(edge);
-    }
-  });
-  minX -= marginX;
-  minY -= marginY;
-  forEach(g.nodes(), function(v) {
-    var node = g.node(v);
-    node.x -= minX;
-    node.y -= minY;
-  });
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    forEach(edge.points, function(p) {
-      p.x -= minX;
-      p.y -= minY;
-    });
-    if (has(edge, "x")) {
-      edge.x -= minX;
-    }
-    if (has(edge, "y")) {
-      edge.y -= minY;
-    }
-  });
-  graphLabel.width = maxX - minX + marginX;
-  graphLabel.height = maxY - minY + marginY;
-}
-function assignNodeIntersects(g) {
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    var nodeV = g.node(e.v);
-    var nodeW = g.node(e.w);
-    var p1, p2;
-    if (!edge.points) {
-      edge.points = [];
-      p1 = nodeW;
-      p2 = nodeV;
-    } else {
-      p1 = edge.points[0];
-      p2 = edge.points[edge.points.length - 1];
-    }
-    edge.points.unshift(intersectRect(nodeV, p1));
-    edge.points.push(intersectRect(nodeW, p2));
-  });
-}
-function fixupEdgeLabelCoords(g) {
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    if (has(edge, "x")) {
-      if (edge.labelpos === "l" || edge.labelpos === "r") {
-        edge.width -= edge.labeloffset;
-      }
-      switch (edge.labelpos) {
-        case "l":
-          edge.x -= edge.width / 2 + edge.labeloffset;
-          break;
-        case "r":
-          edge.x += edge.width / 2 + edge.labeloffset;
-          break;
-      }
-    }
-  });
-}
-function reversePointsForReversedEdges(g) {
-  forEach(g.edges(), function(e) {
-    var edge = g.edge(e);
-    if (edge.reversed) {
-      edge.points.reverse();
-    }
-  });
-}
-function removeBorderNodes(g) {
-  forEach(g.nodes(), function(v) {
-    if (g.children(v).length) {
-      var node = g.node(v);
-      var t = g.node(node.borderTop);
-      var b = g.node(node.borderBottom);
-      var l = g.node(last(node.borderLeft));
-      var r = g.node(last(node.borderRight));
-      node.width = Math.abs(r.x - l.x);
-      node.height = Math.abs(b.y - t.y);
-      node.x = l.x + node.width / 2;
-      node.y = t.y + node.height / 2;
-    }
-  });
-  forEach(g.nodes(), function(v) {
-    if (g.node(v).dummy === "border") {
-      g.removeNode(v);
-    }
-  });
-}
-function removeSelfEdges(g) {
-  forEach(g.edges(), function(e) {
-    if (e.v === e.w) {
-      var node = g.node(e.v);
-      if (!node.selfEdges) {
-        node.selfEdges = [];
-      }
-      node.selfEdges.push({ e, label: g.edge(e) });
-      g.removeEdge(e);
-    }
-  });
-}
-function insertSelfEdges(g) {
-  var layers = buildLayerMatrix(g);
-  forEach(layers, function(layer) {
-    var orderShift = 0;
-    forEach(layer, function(v, i) {
-      var node = g.node(v);
-      node.order = i + orderShift;
-      forEach(node.selfEdges, function(selfEdge) {
-        addDummyNode(
-          g,
-          "selfedge",
-          {
-            width: selfEdge.label.width,
-            height: selfEdge.label.height,
-            rank: node.rank,
-            order: i + ++orderShift,
-            e: selfEdge.e,
-            label: selfEdge.label
-          },
-          "_se"
-        );
-      });
-      delete node.selfEdges;
-    });
-  });
-}
-function positionSelfEdges(g) {
-  forEach(g.nodes(), function(v) {
-    var node = g.node(v);
-    if (node.dummy === "selfedge") {
-      var selfNode = g.node(node.e.v);
-      var x = selfNode.x + selfNode.width / 2;
-      var y = selfNode.y;
-      var dx = node.x - x;
-      var dy = selfNode.height / 2;
-      g.setEdge(node.e, node.label);
-      g.removeNode(v);
-      node.label.points = [
-        { x: x + 2 * dx / 3, y: y - dy },
-        { x: x + 5 * dx / 6, y: y - dy },
-        { x: x + dx, y },
-        { x: x + 5 * dx / 6, y: y + dy },
-        { x: x + 2 * dx / 3, y: y + dy }
-      ];
-      node.label.x = node.x;
-      node.label.y = node.y;
-    }
-  });
-}
-function selectNumberAttrs(obj, attrs) {
-  return mapValues(pick$1(obj, attrs), Number);
-}
-function canonicalize(attrs) {
-  var newAttrs = {};
-  forEach(attrs, function(v, k) {
-    newAttrs[k.toLowerCase()] = v;
-  });
-  return newAttrs;
-}
-export {
-  defaults$1 as d,
-  layout as l,
-  map as m,
-  pick$1 as p,
-  range$1 as r,
-  uniqueId as u
-};