Function(
 Function {
  head: Destructured(
   FunctionHeadDestructured {
    ellipsis: true,
    identifier: None,
    arguments: [
     FunctionHeadDestructuredArgument {
      identifier: "lib",
      default: None,
     },
    ],
   },
  ),
  body: Map(
   Map {
    recursive: false,
    bindings: [
     KeyValue(
      BindingKeyValue {
       from: [
        Raw(
         PartRaw {
          content: "options",
          span: Span {
           start: Position {
            line: 2,
            column: 3,
           },
           end: Position {
            line: 2,
            column: 10,
           },
          },
         },
        ),
        Raw(
         PartRaw {
          content: "value",
          span: Span {
           start: Position {
            line: 2,
            column: 11,
           },
           end: Position {
            line: 2,
            column: 16,
           },
          },
         },
        ),
       ],
       to: FunctionApplication(
        FunctionApplication {
         function: PropertyAccess(
          PropertyAccess {
           expression: Identifier(
            Identifier {
             id: "lib",
             span: Span {
              start: Position {
               line: 2,
               column: 19,
              },
              end: Position {
               line: 2,
               column: 22,
              },
             },
            },
           ),
           attribute_path: [
            Raw(
             PartRaw {
              content: "mkOption",
              span: Span {
               start: Position {
                line: 2,
                column: 23,
               },
               end: Position {
                line: 2,
                column: 31,
               },
              },
             },
            ),
           ],
           default: None,
          },
         ),
         arguments: [
          Map(
           Map {
            recursive: false,
            bindings: [
             KeyValue(
              BindingKeyValue {
               from: [
                Raw(
                 PartRaw {
                  content: "type",
                  span: Span {
                   start: Position {
                    line: 3,
                    column: 5,
                   },
                   end: Position {
                    line: 3,
                    column: 9,
                   },
                  },
                 },
                ),
               ],
               to: FunctionApplication(
                FunctionApplication {
                 function: PropertyAccess(
                  PropertyAccess {
                   expression: Identifier(
                    Identifier {
                     id: "lib",
                     span: Span {
                      start: Position {
                       line: 3,
                       column: 12,
                      },
                      end: Position {
                       line: 3,
                       column: 15,
                      },
                     },
                    },
                   ),
                   attribute_path: [
                    Raw(
                     PartRaw {
                      content: "types",
                      span: Span {
                       start: Position {
                        line: 3,
                        column: 16,
                       },
                       end: Position {
                        line: 3,
                        column: 21,
                       },
                      },
                     },
                    ),
                    Raw(
                     PartRaw {
                      content: "lazyAttrsOf",
                      span: Span {
                       start: Position {
                        line: 3,
                        column: 22,
                       },
                       end: Position {
                        line: 3,
                        column: 33,
                       },
                      },
                     },
                    ),
                   ],
                   default: None,
                  },
                 ),
                 arguments: [
                  BinaryOperation(
                   BinaryOperation {
                    left: PropertyAccess(
                     PropertyAccess {
                      expression: Identifier(
                       Identifier {
                        id: "lib",
                        span: Span {
                         start: Position {
                          line: 3,
                          column: 35,
                         },
                         end: Position {
                          line: 3,
                          column: 38,
                         },
                        },
                       },
                      ),
                      attribute_path: [
                       Raw(
                        PartRaw {
                         content: "types",
                         span: Span {
                          start: Position {
                           line: 3,
                           column: 39,
                          },
                          end: Position {
                           line: 3,
                           column: 44,
                          },
                         },
                        },
                       ),
                       Raw(
                        PartRaw {
                         content: "str",
                         span: Span {
                          start: Position {
                           line: 3,
                           column: 45,
                          },
                          end: Position {
                           line: 3,
                           column: 48,
                          },
                         },
                        },
                       ),
                      ],
                      default: None,
                     },
                    ),
                    operator: Update,
                    right: Map(
                     Map {
                      recursive: false,
                      bindings: [
                       KeyValue(
                        BindingKeyValue {
                         from: [
                          Raw(
                           PartRaw {
                            content: "emptyValue",
                            span: Span {
                             start: Position {
                              line: 3,
                              column: 54,
                             },
                             end: Position {
                              line: 3,
                              column: 64,
                             },
                            },
                           },
                          ),
                          Raw(
                           PartRaw {
                            content: "value",
                            span: Span {
                             start: Position {
                              line: 3,
                              column: 65,
                             },
                             end: Position {
                              line: 3,
                              column: 70,
                             },
                            },
                           },
                          ),
                         ],
                         to: String(
                          String_ {
                           parts: [
                            Raw(
                             PartRaw {
                              content: "empty",
                              span: Span {
                               start: Position {
                                line: 3,
                                column: 74,
                               },
                               end: Position {
                                line: 3,
                                column: 79,
                               },
                              },
                             },
                            ),
                           ],
                           span: Span {
                            start: Position {
                             line: 3,
                             column: 73,
                            },
                            end: Position {
                             line: 3,
                             column: 80,
                            },
                           },
                          },
                         ),
                        },
                       ),
                      ],
                      span: Span {
                       start: Position {
                        line: 3,
                        column: 52,
                       },
                       end: Position {
                        line: 3,
                        column: 83,
                       },
                      },
                     },
                    ),
                   },
                  ),
                 ],
                },
               ),
              },
             ),
             KeyValue(
              BindingKeyValue {
               from: [
                Raw(
                 PartRaw {
                  content: "default",
                  span: Span {
                   start: Position {
                    line: 4,
                    column: 5,
                   },
                   end: Position {
                    line: 4,
                    column: 12,
                   },
                  },
                 },
                ),
               ],
               to: Map(
                Map {
                 recursive: false,
                 bindings: [],
                 span: Span {
                  start: Position {
                   line: 4,
                   column: 15,
                  },
                  end: Position {
                   line: 4,
                   column: 17,
                  },
                 },
                },
               ),
              },
             ),
            ],
            span: Span {
             start: Position {
              line: 2,
              column: 32,
             },
             end: Position {
              line: 5,
              column: 4,
             },
            },
           },
          ),
         ],
        },
       ),
      },
     ),
    ],
    span: Span {
     start: Position {
      line: 1,
      column: 15,
     },
     end: Position {
      line: 6,
      column: 2,
     },
    },
   },
  ),
  span: Span {
   start: Position {
    line: 1,
    column: 1,
   },
   end: Position {
    line: 6,
    column: 2,
   },
  },
 },
)