Function(
 Function {
  head: Destructured(
   FunctionHeadDestructured {
    ellipsis: true,
    identifier: None,
    arguments: [
     FunctionHeadDestructuredArgument {
      identifier: "config",
      default: None,
     },
    ],
   },
  ),
  body: Map(
   Map {
    recursive: false,
    bindings: [
     KeyValue(
      BindingKeyValue {
       from: [
        Raw(
         PartRaw {
          content: "settingsDict",
          span: Span {
           start: Position {
            line: 2,
            column: 3,
           },
           end: Position {
            line: 2,
            column: 15,
           },
          },
         },
        ),
        Raw(
         PartRaw {
          content: "a",
          span: Span {
           start: Position {
            line: 2,
            column: 16,
           },
           end: Position {
            line: 2,
            column: 17,
           },
          },
         },
        ),
       ],
       to: PropertyAccess(
        PropertyAccess {
         expression: Identifier(
          Identifier {
           id: "config",
           span: Span {
            start: Position {
             line: 2,
             column: 20,
            },
            end: Position {
             line: 2,
             column: 26,
            },
           },
          },
         ),
         attribute_path: [
          Raw(
           PartRaw {
            content: "settingsDict",
            span: Span {
             start: Position {
              line: 2,
              column: 27,
             },
             end: Position {
              line: 2,
              column: 39,
             },
            },
           },
          ),
          Raw(
           PartRaw {
            content: "b",
            span: Span {
             start: Position {
              line: 2,
              column: 40,
             },
             end: Position {
              line: 2,
              column: 41,
             },
            },
           },
          ),
         ],
         default: None,
        },
       ),
      },
     ),
    ],
    span: Span {
     start: Position {
      line: 1,
      column: 18,
     },
     end: Position {
      line: 3,
      column: 2,
     },
    },
   },
  ),
  span: Span {
   start: Position {
    line: 1,
    column: 1,
   },
   end: Position {
    line: 3,
    column: 2,
   },
  },
 },
)