{
  "type": "Program",
  "statements": [
    {
      "type": "VariableDeclaration",
      "declarations": [
        {
          "type": "VariableDeclarator",
          "id": {
            "type": "ArrayPattern",
            "elements": [
              {
                "type": "Identifier",
                "name": "a",
                "decorators": [],
                "loc": {
                  "start": {
                    "line": 17,
                    "column": 6
                  },
                  "end": {
                    "line": 17,
                    "column": 7
                  }
                }
              },
              {
                "type": "Identifier",
                "name": "b",
                "decorators": [],
                "loc": {
                  "start": {
                    "line": 17,
                    "column": 9
                  },
                  "end": {
                    "line": 17,
                    "column": 10
                  }
                }
              }
            ],
            "typeAnnotation": {
              "type": "TSUnionType",
              "types": [
                {
                  "type": "TSArrayType",
                  "elementType": {
                    "type": "TSNumberKeyword",
                    "loc": {
                      "start": {
                        "line": 17,
                        "column": 13
                      },
                      "end": {
                        "line": 17,
                        "column": 19
                      }
                    }
                  },
                  "loc": {
                    "start": {
                      "line": 17,
                      "column": 13
                    },
                    "end": {
                      "line": 17,
                      "column": 21
                    }
                  }
                },
                {
                  "type": "TSTupleType",
                  "elementTypes": [
                    {
                      "type": "TSStringKeyword",
                      "loc": {
                        "start": {
                          "line": 17,
                          "column": 25
                        },
                        "end": {
                          "line": 17,
                          "column": 32
                        }
                      }
                    },
                    {
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                        "start": {
                          "line": 17,
                          "column": 33
                        },
                        "end": {
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                          "column": 40
                        }
                      }
                    }
                  ],
                  "loc": {
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                      "line": 17,
                      "column": 24
                    },
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                    }
                  }
                }
              ],
              "loc": {
                "start": {
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                },
                "end": {
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                  "column": 40
                }
              }
            },
            "loc": {
              "start": {
                "line": 17,
                "column": 5
              },
              "end": {
                "line": 17,
                "column": 11
              }
            }
          },
          "init": {
            "type": "ArrayExpression",
            "elements": [
              {
                "type": "NumberLiteral",
                "value": 1,
                "loc": {
                  "start": {
                    "line": 17,
                    "column": 44
                  },
                  "end": {
                    "line": 17,
                    "column": 45
                  }
                }
              },
              {
                "type": "NumberLiteral",
                "value": 2,
                "loc": {
                  "start": {
                    "line": 17,
                    "column": 47
                  },
                  "end": {
                    "line": 17,
                    "column": 48
                  }
                }
              }
            ],
            "loc": {
              "start": {
                "line": 17,
                "column": 43
              },
              "end": {
                "line": 17,
                "column": 49
              }
            }
          },
          "loc": {
            "start": {
              "line": 17,
              "column": 5
            },
            "end": {
              "line": 17,
              "column": 49
            }
          }
        }
      ],
      "kind": "var",
      "loc": {
        "start": {
          "line": 17,
          "column": 1
        },
        "end": {
          "line": 17,
          "column": 50
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "expression": {
        "type": "AssignmentExpression",
        "operator": "=",
        "left": {
          "type": "Identifier",
          "name": "a",
          "decorators": [],
          "loc": {
            "start": {
              "line": 18,
              "column": 1
            },
            "end": {
              "line": 18,
              "column": 2
            }
          }
        },
        "right": {
          "type": "ObjectExpression",
          "properties": [],
          "loc": {
            "start": {
              "line": 18,
              "column": 5
            },
            "end": {
              "line": 18,
              "column": 7
            }
          }
        },
        "loc": {
          "start": {
            "line": 18,
            "column": 1
          },
          "end": {
            "line": 18,
            "column": 7
          }
        }
      },
      "loc": {
        "start": {
          "line": 18,
          "column": 1
        },
        "end": {
          "line": 18,
          "column": 8
        }
      }
    }
  ],
  "loc": {
    "start": {
      "line": 1,
      "column": 1
    },
    "end": {
      "line": 18,
      "column": 8
    }
  }
}
TypeError: Type '{ }' is not assignable to type 'number | string'. [arrayDestructuring6.ts:18:1]