Function(
 Function {
  head: Destructured(
   FunctionHeadDestructured {
    ellipsis: true,
    identifier: None,
    arguments: [
     FunctionHeadDestructuredArgument {
      identifier: "lib",
      default: None,
     },
     FunctionHeadDestructuredArgument {
      identifier: "custom",
      default: None,
     },
    ],
   },
  ),
  body: Map(
   Map {
    recursive: false,
    bindings: [
     KeyValue(
      BindingKeyValue {
       from: [
        Raw(
         PartRaw {
          content: "config",
          span: Span {
           start: Position {
            line: 4,
            column: 3,
           },
           end: Position {
            line: 4,
            column: 9,
           },
          },
         },
        ),
       ],
       to: Map(
        Map {
         recursive: false,
         bindings: [
          KeyValue(
           BindingKeyValue {
            from: [
             Raw(
              PartRaw {
               content: "enable",
               span: Span {
                start: Position {
                 line: 5,
                 column: 5,
                },
                end: Position {
                 line: 5,
                 column: 11,
                },
               },
              },
             ),
            ],
            to: Identifier(
             Identifier {
              id: "custom",
              span: Span {
               start: Position {
                line: 5,
                column: 14,
               },
               end: Position {
                line: 5,
                column: 20,
               },
              },
             },
            ),
           },
          ),
         ],
         span: Span {
          start: Position {
           line: 4,
           column: 12,
          },
          end: Position {
           line: 6,
           column: 4,
          },
         },
        },
       ),
      },
     ),
    ],
    span: Span {
     start: Position {
      line: 3,
      column: 1,
     },
     end: Position {
      line: 7,
      column: 2,
     },
    },
   },
  ),
  span: Span {
   start: Position {
    line: 1,
    column: 1,
   },
   end: Position {
    line: 7,
    column: 2,
   },
  },
 },
)