message: Rebuild function specs.
diff: ],
  "children": [
  {
  - "id": 38,
  + "id": 41,
  "name": "functionVariable",
  "kind": 32,
  "kindString": "Variable",
  "sources": [
  {
  "fileName": "function.ts",
  - "line": 137,
  + "line": 145,
  "character": 24
  }
  ],
  }
  },
  {
  - "id": 39,
  + "id": 42,
  "name": "append",
  "kind": 64,
  "kindString": "Function",
  "flags": {},
  "signatures": [
  {
  - "id": 40,
  + "id": 43,
  "name": "append",
  "kind": 4096,
  "kindString": "Call signature",
  "sources": [
  {
  "fileName": "function.ts",
  - "line": 143,
  + "line": 151,
  "character": 19
  }
  ]
  },
  {
  - "id": 41,
  + "id": 44,
  "name": "prepend",
  "kind": 64,
  "kindString": "Function",
  "flags": {},
  "signatures": [
  {
  - "id": 42,
  + "id": 45,
  "name": "prepend",
  "kind": 4096,
  "kindString": "Call signature",
  "sources": [
  {
  "fileName": "function.ts",
  - "line": 150,
  + "line": 158,
  "character": 20
  }
  ]
  "title": "Variables",
  "kind": 32,
  "children": [
  - 38
  + 41
  ]
  },
  {
  "title": "Functions",
  "kind": 64,
  "children": [
  - 39,
  - 41
  + 42,
  + 44
  ]
  }
  ],
  },
  {
  "fileName": "function.ts",
  - "line": 132,
  + "line": 140,
  "character": 28
  }
  ]
  },
  + {
  + "id": 38,
  + "name": "assertionFunction",
  + "kind": 64,
  + "kindString": "Function",
  + "flags": {
  + "isExported": true
  + },
  + "signatures": [
  + {
  + "id": 39,
  + "name": "assertionFunction",
  + "kind": 4096,
  + "kindString": "Call signature",
  + "flags": {},
  + "comment": {
  + "shortText": "This is an assertion function."
  + },
  + "parameters": [
  + {
  + "id": 40,
  + "name": "condition",
  + "kind": 32768,
  + "kindString": "Parameter",
  + "flags": {},
  + "comment": {
  + "text": "The condition that is asserted to be true when this function returns.\n"
  + },
  + "type": {
  + "type": "intrinsic",
  + "name": "boolean"
  + }
  + }
  + ],
  + "type": {
  + "type": "intrinsic",
  + "name": "void"
  + }
  + }
  + ],
  + "sources": [
  + {
  + "fileName": "function.ts",
  + "line": 134,
  + "character": 33
  + }
  + ]
  + },
  {
  "id": 4,
  "name": "exportedFunction",
  "title": "Functions",
  "kind": 64,
  "children": [
  + 38,
  4,
  18,
  14,
  