Function(
 Function {
  head: Destructured(
   FunctionHeadDestructured {
    ellipsis: false,
    identifier: None,
    arguments: [
     FunctionHeadDestructuredArgument {
      identifier: "configuration",
      default: Some(
       FunctionApplication(
        FunctionApplication {
         function: Identifier(
          Identifier {
           id: "import",
           span: Span {
            start: Position {
             line: 1,
             column: 19,
            },
            end: Position {
             line: 1,
             column: 25,
            },
           },
          },
         ),
         arguments: [
          Path(
           Path {
            parts: [
             Raw(
              PartRaw {
               content: "./lib/from-env.nix",
               span: Span {
                start: Position {
                 line: 1,
                 column: 26,
                },
                end: Position {
                 line: 1,
                 column: 44,
                },
               },
              },
             ),
            ],
            span: Span {
             start: Position {
              line: 1,
              column: 26,
             },
             end: Position {
              line: 1,
              column: 44,
             },
            },
           },
          ),
          String(
           String_ {
            parts: [
             Raw(
              PartRaw {
               content: "NIXOS_CONFIG",
               span: Span {
                start: Position {
                 line: 1,
                 column: 46,
                },
                end: Position {
                 line: 1,
                 column: 58,
                },
               },
              },
             ),
            ],
            span: Span {
             start: Position {
              line: 1,
              column: 45,
             },
             end: Position {
              line: 1,
              column: 59,
             },
            },
           },
          ),
          SearchNixPath(
           SearchNixPath {
            path: "<nixos-config>",
            span: Span {
             start: Position {
              line: 1,
              column: 60,
             },
             end: Position {
              line: 1,
              column: 74,
             },
            },
           },
          ),
         ],
        },
       ),
      ),
     },
     FunctionHeadDestructuredArgument {
      identifier: "system",
      default: Some(
       PropertyAccess(
        PropertyAccess {
         expression: Identifier(
          Identifier {
           id: "builtins",
           span: Span {
            start: Position {
             line: 2,
             column: 12,
            },
            end: Position {
             line: 2,
             column: 20,
            },
           },
          },
         ),
         attribute_path: [
          Raw(
           PartRaw {
            content: "currentSystem",
            span: Span {
             start: Position {
              line: 2,
              column: 21,
             },
             end: Position {
              line: 2,
              column: 34,
             },
            },
           },
          ),
         ],
         default: None,
        },
       ),
      ),
     },
    ],
   },
  ),
  body: LetIn(
   LetIn {
    bindings: [
     KeyValue(
      BindingKeyValue {
       from: [
        Raw(
         PartRaw {
          content: "eval",
          span: Span {
           start: Position {
            line: 7,
            column: 3,
           },
           end: Position {
            line: 7,
            column: 7,
           },
          },
         },
        ),
       ],
       to: FunctionApplication(
        FunctionApplication {
         function: Identifier(
          Identifier {
           id: "import",
           span: Span {
            start: Position {
             line: 7,
             column: 10,
            },
            end: Position {
             line: 7,
             column: 16,
            },
           },
          },
         ),
         arguments: [
          Path(
           Path {
            parts: [
             Raw(
              PartRaw {
               content: "./lib/eval-config.nix",
               span: Span {
                start: Position {
                 line: 7,
                 column: 17,
                },
                end: Position {
                 line: 7,
                 column: 38,
                },
               },
              },
             ),
            ],
            span: Span {
             start: Position {
              line: 7,
              column: 17,
             },
             end: Position {
              line: 7,
              column: 38,
             },
            },
           },
          ),
          Map(
           Map {
            recursive: false,
            bindings: [
             Inherit(
              BindingInherit {
               from: None,
               attributes: [
                Raw(
                 PartRaw {
                  content: "system",
                  span: Span {
                   start: Position {
                    line: 8,
                    column: 13,
                   },
                   end: Position {
                    line: 8,
                    column: 19,
                   },
                  },
                 },
                ),
               ],
               span: Span {
                start: Position {
                 line: 7,
                 column: 40,
                },
                end: Position {
                 line: 8,
                 column: 20,
                },
               },
              },
             ),
             KeyValue(
              BindingKeyValue {
               from: [
                Raw(
                 PartRaw {
                  content: "modules",
                  span: Span {
                   start: Position {
                    line: 9,
                    column: 5,
                   },
                   end: Position {
                    line: 9,
                    column: 12,
                   },
                  },
                 },
                ),
               ],
               to: List(
                List {
                 elements: [
                  Identifier(
                   Identifier {
                    id: "configuration",
                    span: Span {
                     start: Position {
                      line: 9,
                      column: 17,
                     },
                     end: Position {
                      line: 9,
                      column: 30,
                     },
                    },
                   },
                  ),
                 ],
                 span: Span {
                  start: Position {
                   line: 9,
                   column: 15,
                  },
                  end: Position {
                   line: 9,
                   column: 32,
                  },
                 },
                },
               ),
              },
             ),
            ],
            span: Span {
             start: Position {
              line: 7,
              column: 39,
             },
             end: Position {
              line: 10,
              column: 4,
             },
            },
           },
          ),
         ],
        },
       ),
      },
     ),
    ],
    target: Map(
     Map {
      recursive: false,
      bindings: [
       Inherit(
        BindingInherit {
         from: Some(
          Identifier(
           Identifier {
            id: "eval",
            span: Span {
             start: Position {
              line: 15,
              column: 12,
             },
             end: Position {
              line: 15,
              column: 16,
             },
            },
           },
          ),
         ),
         attributes: [
          Raw(
           PartRaw {
            content: "pkgs",
            span: Span {
             start: Position {
              line: 15,
              column: 18,
             },
             end: Position {
              line: 15,
              column: 22,
             },
            },
           },
          ),
          Raw(
           PartRaw {
            content: "config",
            span: Span {
             start: Position {
              line: 15,
              column: 23,
             },
             end: Position {
              line: 15,
              column: 29,
             },
            },
           },
          ),
          Raw(
           PartRaw {
            content: "options",
            span: Span {
             start: Position {
              line: 15,
              column: 30,
             },
             end: Position {
              line: 15,
              column: 37,
             },
            },
           },
          ),
         ],
         span: Span {
          start: Position {
           line: 14,
           column: 2,
          },
          end: Position {
           line: 15,
           column: 38,
          },
         },
        },
       ),
       KeyValue(
        BindingKeyValue {
         from: [
          Raw(
           PartRaw {
            content: "system",
            span: Span {
             start: Position {
              line: 17,
              column: 3,
             },
             end: Position {
              line: 17,
              column: 9,
             },
            },
           },
          ),
         ],
         to: PropertyAccess(
          PropertyAccess {
           expression: Identifier(
            Identifier {
             id: "eval",
             span: Span {
              start: Position {
               line: 17,
               column: 12,
              },
              end: Position {
               line: 17,
               column: 16,
              },
             },
            },
           ),
           attribute_path: [
            Raw(
             PartRaw {
              content: "config",
              span: Span {
               start: Position {
                line: 17,
                column: 17,
               },
               end: Position {
                line: 17,
                column: 23,
               },
              },
             },
            ),
            Raw(
             PartRaw {
              content: "system",
              span: Span {
               start: Position {
                line: 17,
                column: 24,
               },
               end: Position {
                line: 17,
                column: 30,
               },
              },
             },
            ),
            Raw(
             PartRaw {
              content: "build",
              span: Span {
               start: Position {
                line: 17,
                column: 31,
               },
               end: Position {
                line: 17,
                column: 36,
               },
              },
             },
            ),
            Raw(
             PartRaw {
              content: "toplevel",
              span: Span {
               start: Position {
                line: 17,
                column: 37,
               },
               end: Position {
                line: 17,
                column: 45,
               },
              },
             },
            ),
           ],
           default: None,
          },
         ),
        },
       ),
       Inherit(
        BindingInherit {
         from: Some(
          PropertyAccess(
           PropertyAccess {
            expression: Identifier(
             Identifier {
              id: "eval",
              span: Span {
               start: Position {
                line: 19,
                column: 12,
               },
               end: Position {
                line: 19,
                column: 16,
               },
              },
             },
            ),
            attribute_path: [
             Raw(
              PartRaw {
               content: "config",
               span: Span {
                start: Position {
                 line: 19,
                 column: 17,
                },
                end: Position {
                 line: 19,
                 column: 23,
                },
               },
              },
             ),
             Raw(
              PartRaw {
               content: "system",
               span: Span {
                start: Position {
                 line: 19,
                 column: 24,
                },
                end: Position {
                 line: 19,
                 column: 30,
                },
               },
              },
             ),
             Raw(
              PartRaw {
               content: "build",
               span: Span {
                start: Position {
                 line: 19,
                 column: 31,
                },
                end: Position {
                 line: 19,
                 column: 36,
                },
               },
              },
             ),
            ],
            default: None,
           },
          ),
         ),
         attributes: [
          Raw(
           PartRaw {
            content: "vm",
            span: Span {
             start: Position {
              line: 19,
              column: 38,
             },
             end: Position {
              line: 19,
              column: 40,
             },
            },
           },
          ),
          Raw(
           PartRaw {
            content: "vmWithBootLoader",
            span: Span {
             start: Position {
              line: 19,
              column: 41,
             },
             end: Position {
              line: 19,
              column: 57,
             },
            },
           },
          ),
         ],
         span: Span {
          start: Position {
           line: 14,
           column: 2,
          },
          end: Position {
           line: 19,
           column: 58,
          },
         },
        },
       ),
      ],
      span: Span {
       start: Position {
        line: 14,
        column: 1,
       },
       end: Position {
        line: 20,
        column: 2,
       },
      },
     },
    ),
    span: Span {
     start: Position {
      line: 5,
      column: 1,
     },
     end: Position {
      line: 20,
      column: 2,
     },
    },
   },
  ),
  span: Span {
   start: Position {
    line: 1,
    column: 1,
   },
   end: Position {
    line: 20,
    column: 2,
   },
  },
 },
)