{
  "type": "Program",
  "statements": [
    {
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      "function": {
        "type": "ScriptFunction",
        "id": {
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              "column": 10
            },
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        },
        "generator": false,
        "async": false,
        "expression": false,
        "params": [
          {
            "type": "RestElement",
            "argument": {
              "type": "Identifier",
              "name": "a",
              "typeAnnotation": {
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                "elementType": {
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                },
                "end": {
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                  "column": 19
                }
              }
            },
            "loc": {
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                "column": 15
              },
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                "column": 19
              }
            }
          }
        ],
        "body": {
          "type": "BlockStatement",
          "statements": [
            {
              "type": "ReturnStatement",
              "argument": {
                "type": "NumberLiteral",
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                "loc": {
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                    "column": 12
                  },
                  "end": {
                    "line": 18,
                    "column": 13
                  }
                }
              },
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                  "column": 5
                },
                "end": {
                  "line": 18,
                  "column": 14
                }
              }
            }
          ],
          "loc": {
            "start": {
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              "column": 31
            },
            "end": {
              "line": 19,
              "column": 2
            }
          }
        },
        "loc": {
          "start": {
            "line": 17,
            "column": 1
          },
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          }
        }
      },
      "loc": {
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          "column": 1
        },
        "end": {
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          "column": 2
        }
      }
    },
    {
      "type": "ExpressionStatement",
      "expression": {
        "type": "CallExpression",
        "callee": {
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              "column": 1
            },
            "end": {
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              "column": 5
            }
          }
        },
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                "column": 6
              },
              "end": {
                "line": 21,
                "column": 7
              }
            }
          }
        ],
        "optional": false,
        "loc": {
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          },
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            "column": 8
          }
        }
      },
      "loc": {
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        },
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        }
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  "loc": {
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      "column": 1
    },
    "end": {
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  }
}
TypeError: Argument of type 'number' is not assignable to parameter of type 'string'. [functionCall_7.ts:21:6]