Function(
 Function {
  head: Destructured(
   FunctionHeadDestructured {
    ellipsis: true,
    identifier: None,
    arguments: [
     FunctionHeadDestructuredArgument {
      identifier: "config",
      default: None,
     },
     FunctionHeadDestructuredArgument {
      identifier: "lib",
      default: None,
     },
     FunctionHeadDestructuredArgument {
      identifier: "pkgs",
      default: None,
     },
    ],
   },
  ),
  body: With(
   With {
    expression: Identifier(
     Identifier {
      id: "lib",
      span: Span {
       start: Position {
        line: 3,
        column: 6,
       },
       end: Position {
        line: 3,
        column: 9,
       },
      },
     },
    ),
    target: LetIn(
     LetIn {
      bindings: [
       KeyValue(
        BindingKeyValue {
         from: [
          Raw(
           PartRaw {
            content: "cfg",
            span: Span {
             start: Position {
              line: 6,
              column: 3,
             },
             end: Position {
              line: 6,
              column: 6,
             },
            },
           },
          ),
         ],
         to: PropertyAccess(
          PropertyAccess {
           expression: Identifier(
            Identifier {
             id: "config",
             span: Span {
              start: Position {
               line: 6,
               column: 9,
              },
              end: Position {
               line: 6,
               column: 15,
              },
             },
            },
           ),
           attribute_path: [
            Raw(
             PartRaw {
              content: "services",
              span: Span {
               start: Position {
                line: 6,
                column: 16,
               },
               end: Position {
                line: 6,
                column: 24,
               },
              },
             },
            ),
            Raw(
             PartRaw {
              content: "brltty",
              span: Span {
               start: Position {
                line: 6,
                column: 25,
               },
               end: Position {
                line: 6,
                column: 31,
               },
              },
             },
            ),
           ],
           default: None,
          },
         ),
        },
       ),
       KeyValue(
        BindingKeyValue {
         from: [
          Raw(
           PartRaw {
            content: "targets",
            span: Span {
             start: Position {
              line: 8,
              column: 3,
             },
             end: Position {
              line: 8,
              column: 10,
             },
            },
           },
          ),
         ],
         to: List(
          List {
           elements: [
            String(
             String_ {
              parts: [
               Raw(
                PartRaw {
                 content: "default.target",
                 span: Span {
                  start: Position {
                   line: 9,
                   column: 6,
                  },
                  end: Position {
                   line: 9,
                   column: 20,
                  },
                 },
                },
               ),
              ],
              span: Span {
               start: Position {
                line: 9,
                column: 5,
               },
               end: Position {
                line: 9,
                column: 21,
               },
              },
             },
            ),
            String(
             String_ {
              parts: [
               Raw(
                PartRaw {
                 content: "multi-user.target",
                 span: Span {
                  start: Position {
                   line: 9,
                   column: 23,
                  },
                  end: Position {
                   line: 9,
                   column: 40,
                  },
                 },
                },
               ),
              ],
              span: Span {
               start: Position {
                line: 9,
                column: 22,
               },
               end: Position {
                line: 9,
                column: 41,
               },
              },
             },
            ),
            String(
             String_ {
              parts: [
               Raw(
                PartRaw {
                 content: "rescue.target",
                 span: Span {
                  start: Position {
                   line: 10,
                   column: 6,
                  },
                  end: Position {
                   line: 10,
                   column: 19,
                  },
                 },
                },
               ),
              ],
              span: Span {
               start: Position {
                line: 10,
                column: 5,
               },
               end: Position {
                line: 10,
                column: 20,
               },
              },
             },
            ),
            String(
             String_ {
              parts: [
               Raw(
                PartRaw {
                 content: "emergency.target",
                 span: Span {
                  start: Position {
                   line: 10,
                   column: 22,
                  },
                  end: Position {
                   line: 10,
                   column: 38,
                  },
                 },
                },
               ),
              ],
              span: Span {
               start: Position {
                line: 10,
                column: 21,
               },
               end: Position {
                line: 10,
                column: 39,
               },
              },
             },
            ),
           ],
           span: Span {
            start: Position {
             line: 8,
             column: 13,
            },
            end: Position {
             line: 11,
             column: 4,
            },
           },
          },
         ),
        },
       ),
       KeyValue(
        BindingKeyValue {
         from: [
          Raw(
           PartRaw {
            content: "genApiKey",
            span: Span {
             start: Position {
              line: 13,
              column: 3,
             },
             end: Position {
              line: 13,
              column: 12,
             },
            },
           },
          ),
         ],
         to: FunctionApplication(
          FunctionApplication {
           function: PropertyAccess(
            PropertyAccess {
             expression: Identifier(
              Identifier {
               id: "pkgs",
               span: Span {
                start: Position {
                 line: 13,
                 column: 15,
                },
                end: Position {
                 line: 13,
                 column: 19,
                },
               },
              },
             ),
             attribute_path: [
              Raw(
               PartRaw {
                content: "writers",
                span: Span {
                 start: Position {
                  line: 13,
                  column: 20,
                 },
                 end: Position {
                  line: 13,
                  column: 27,
                 },
                },
               },
              ),
              Raw(
               PartRaw {
                content: "writeDash",
                span: Span {
                 start: Position {
                  line: 13,
                  column: 28,
                 },
                 end: Position {
                  line: 13,
                  column: 37,
                 },
                },
               },
              ),
             ],
             default: None,
            },
           ),
           arguments: [
            String(
             String_ {
              parts: [
               Raw(
                PartRaw {
                 content: "generate-brlapi-key",
                 span: Span {
                  start: Position {
                   line: 13,
                   column: 39,
                  },
                  end: Position {
                   line: 13,
                   column: 58,
                  },
                 },
                },
               ),
              ],
              span: Span {
               start: Position {
                line: 13,
                column: 38,
               },
               end: Position {
                line: 13,
                column: 59,
               },
              },
             },
            ),
            IndentedString(
             IndentedString {
              parts: [
               Raw(
                PartRaw {
                 content: "if ! test -f /etc/brlapi.key; then\n  echo -n generating brlapi key...\n  ",
                 span: Span {
                  start: Position {
                   line: 14,
                   column: 1,
                  },
                  end: Position {
                   line: 16,
                   column: 7,
                  },
                 },
                },
               ),
               Interpolation(
                PartInterpolation {
                 expression: PropertyAccess(
                  PropertyAccess {
                   expression: Identifier(
                    Identifier {
                     id: "pkgs",
                     span: Span {
                      start: Position {
                       line: 16,
                       column: 9,
                      },
                      end: Position {
                       line: 16,
                       column: 13,
                      },
                     },
                    },
                   ),
                   attribute_path: [
                    Raw(
                     PartRaw {
                      content: "brltty",
                      span: Span {
                       start: Position {
                        line: 16,
                        column: 14,
                       },
                       end: Position {
                        line: 16,
                        column: 20,
                       },
                      },
                     },
                    ),
                   ],
                   default: None,
                  },
                 ),
                },
               ),
               Raw(
                PartRaw {
                 content: "/bin/brltty-genkey -f /etc/brlapi.key\n  echo done\nfi\n",
                 span: Span {
                  start: Position {
                   line: 14,
                   column: 1,
                  },
                  end: Position {
                   line: 19,
                   column: 3,
                  },
                 },
                },
               ),
              ],
              span: Span {
               start: Position {
                line: 13,
                column: 60,
               },
               end: Position {
                line: 19,
                column: 5,
               },
              },
             },
            ),
           ],
          },
         ),
        },
       ),
      ],
      target: Map(
       Map {
        recursive: false,
        bindings: [
         KeyValue(
          BindingKeyValue {
           from: [
            Raw(
             PartRaw {
              content: "options",
              span: Span {
               start: Position {
                line: 23,
                column: 3,
               },
               end: Position {
                line: 23,
                column: 10,
               },
              },
             },
            ),
           ],
           to: Map(
            Map {
             recursive: false,
             bindings: [
              KeyValue(
               BindingKeyValue {
                from: [
                 Raw(
                  PartRaw {
                   content: "services",
                   span: Span {
                    start: Position {
                     line: 25,
                     column: 5,
                    },
                    end: Position {
                     line: 25,
                     column: 13,
                    },
                   },
                  },
                 ),
                 Raw(
                  PartRaw {
                   content: "brltty",
                   span: Span {
                    start: Position {
                     line: 25,
                     column: 14,
                    },
                    end: Position {
                     line: 25,
                     column: 20,
                    },
                   },
                  },
                 ),
                 Raw(
                  PartRaw {
                   content: "enable",
                   span: Span {
                    start: Position {
                     line: 25,
                     column: 21,
                    },
                    end: Position {
                     line: 25,
                     column: 27,
                    },
                   },
                  },
                 ),
                ],
                to: FunctionApplication(
                 FunctionApplication {
                  function: Identifier(
                   Identifier {
                    id: "mkOption",
                    span: Span {
                     start: Position {
                      line: 25,
                      column: 30,
                     },
                     end: Position {
                      line: 25,
                      column: 38,
                     },
                    },
                   },
                  ),
                  arguments: [
                   Map(
                    Map {
                     recursive: false,
                     bindings: [
                      KeyValue(
                       BindingKeyValue {
                        from: [
                         Raw(
                          PartRaw {
                           content: "type",
                           span: Span {
                            start: Position {
                             line: 26,
                             column: 7,
                            },
                            end: Position {
                             line: 26,
                             column: 11,
                            },
                           },
                          },
                         ),
                        ],
                        to: PropertyAccess(
                         PropertyAccess {
                          expression: Identifier(
                           Identifier {
                            id: "types",
                            span: Span {
                             start: Position {
                              line: 26,
                              column: 14,
                             },
                             end: Position {
                              line: 26,
                              column: 19,
                             },
                            },
                           },
                          ),
                          attribute_path: [
                           Raw(
                            PartRaw {
                             content: "bool",
                             span: Span {
                              start: Position {
                               line: 26,
                               column: 20,
                              },
                              end: Position {
                               line: 26,
                               column: 24,
                              },
                             },
                            },
                           ),
                          ],
                          default: None,
                         },
                        ),
                       },
                      ),
                      KeyValue(
                       BindingKeyValue {
                        from: [
                         Raw(
                          PartRaw {
                           content: "default",
                           span: Span {
                            start: Position {
                             line: 27,
                             column: 7,
                            },
                            end: Position {
                             line: 27,
                             column: 14,
                            },
                           },
                          },
                         ),
                        ],
                        to: Identifier(
                         Identifier {
                          id: "false",
                          span: Span {
                           start: Position {
                            line: 27,
                            column: 17,
                           },
                           end: Position {
                            line: 27,
                            column: 22,
                           },
                          },
                         },
                        ),
                       },
                      ),
                      KeyValue(
                       BindingKeyValue {
                        from: [
                         Raw(
                          PartRaw {
                           content: "description",
                           span: Span {
                            start: Position {
                             line: 28,
                             column: 7,
                            },
                            end: Position {
                             line: 28,
                             column: 18,
                            },
                           },
                          },
                         ),
                        ],
                        to: FunctionApplication(
                         FunctionApplication {
                          function: PropertyAccess(
                           PropertyAccess {
                            expression: Identifier(
                             Identifier {
                              id: "lib",
                              span: Span {
                               start: Position {
                                line: 28,
                                column: 21,
                               },
                               end: Position {
                                line: 28,
                                column: 24,
                               },
                              },
                             },
                            ),
                            attribute_path: [
                             Raw(
                              PartRaw {
                               content: "mdDoc",
                               span: Span {
                                start: Position {
                                 line: 28,
                                 column: 25,
                                },
                                end: Position {
                                 line: 28,
                                 column: 30,
                                },
                               },
                              },
                             ),
                            ],
                            default: None,
                           },
                          ),
                          arguments: [
                           String(
                            String_ {
                             parts: [
                              Raw(
                               PartRaw {
                                content: "Whether to enable the BRLTTY daemon.",
                                span: Span {
                                 start: Position {
                                  line: 28,
                                  column: 32,
                                 },
                                 end: Position {
                                  line: 28,
                                  column: 68,
                                 },
                                },
                               },
                              ),
                             ],
                             span: Span {
                              start: Position {
                               line: 28,
                               column: 31,
                              },
                              end: Position {
                               line: 28,
                               column: 69,
                              },
                             },
                            },
                           ),
                          ],
                         },
                        ),
                       },
                      ),
                     ],
                     span: Span {
                      start: Position {
                       line: 25,
                       column: 39,
                      },
                      end: Position {
                       line: 29,
                       column: 6,
                      },
                     },
                    },
                   ),
                  ],
                 },
                ),
               },
              ),
             ],
             span: Span {
              start: Position {
               line: 23,
               column: 13,
              },
              end: Position {
               line: 31,
               column: 4,
              },
             },
            },
           ),
          },
         ),
         KeyValue(
          BindingKeyValue {
           from: [
            Raw(
             PartRaw {
              content: "config",
              span: Span {
               start: Position {
                line: 33,
                column: 3,
               },
               end: Position {
                line: 33,
                column: 9,
               },
              },
             },
            ),
           ],
           to: FunctionApplication(
            FunctionApplication {
             function: Identifier(
              Identifier {
               id: "mkIf",
               span: Span {
                start: Position {
                 line: 33,
                 column: 12,
                },
                end: Position {
                 line: 33,
                 column: 16,
                },
               },
              },
             ),
             arguments: [
              PropertyAccess(
               PropertyAccess {
                expression: Identifier(
                 Identifier {
                  id: "cfg",
                  span: Span {
                   start: Position {
                    line: 33,
                    column: 17,
                   },
                   end: Position {
                    line: 33,
                    column: 20,
                   },
                  },
                 },
                ),
                attribute_path: [
                 Raw(
                  PartRaw {
                   content: "enable",
                   span: Span {
                    start: Position {
                     line: 33,
                     column: 21,
                    },
                    end: Position {
                     line: 33,
                     column: 27,
                    },
                   },
                  },
                 ),
                ],
                default: None,
               },
              ),
              Map(
               Map {
                recursive: false,
                bindings: [
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                  BindingKeyValue {
                   from: [
                    Raw(
                     PartRaw {
                      content: "users",
                      span: Span {
                       start: Position {
                        line: 34,
                        column: 5,
                       },
                       end: Position {
                        line: 34,
                        column: 10,
                       },
                      },
                     },
                    ),
                    Raw(
                     PartRaw {
                      content: "users",
                      span: Span {
                       start: Position {
                        line: 34,
                        column: 11,
                       },
                       end: Position {
                        line: 34,
                        column: 16,
                       },
                      },
                     },
                    ),
                    Raw(
                     PartRaw {
                      content: "brltty",
                      span: Span {
                       start: Position {
                        line: 34,
                        column: 17,
                       },
                       end: Position {
                        line: 34,
                        column: 23,
                       },
                      },
                     },
                    ),
                   ],
                   to: Map(
                    Map {
                     recursive: false,
                     bindings: [
                      KeyValue(
                       BindingKeyValue {
                        from: [
                         Raw(
                          PartRaw {
                           content: "description",
                           span: Span {
                            start: Position {
                             line: 35,
                             column: 7,
                            },
                            end: Position {
                             line: 35,
                             column: 18,
                            },
                           },
                          },
                         ),
                        ],
                        to: String(
                         String_ {
                          parts: [
                           Raw(
                            PartRaw {
                             content: "BRLTTY daemon user",
                             span: Span {
                              start: Position {
                               line: 35,
                               column: 22,
                              },
                              end: Position {
                               line: 35,
                               column: 40,
                              },
                             },
                            },
                           ),
                          ],
                          span: Span {
                           start: Position {
                            line: 35,
                            column: 21,
                           },
                           end: Position {
                            line: 35,
                            column: 41,
                           },
                          },
                         },
                        ),
                       },
                      ),
                      KeyValue(
                       BindingKeyValue {
                        from: [
                         Raw(
                          PartRaw {
                           content: "group",
                           span: Span {
                            start: Position {
                             line: 36,
                             column: 7,
                            },
                            end: Position {
                             line: 36,
                             column: 12,
                            },
                           },
                          },
                         ),
                        ],
                        to: String(
                         String_ {
                          parts: [
                           Raw(
                            PartRaw {
                             content: "brltty",
                             span: Span {
                              start: Position {
                               line: 36,
                               column: 16,
                              },
                              end: Position {
                               line: 36,
                               column: 22,
                              },
                             },
                            },
                           ),
                          ],
                          span: Span {
                           start: Position {
                            line: 36,
                            column: 15,
                           },
                           end: Position {
                            line: 36,
                            column: 23,
                           },
                          },
                         },
                        ),
                       },
                      ),
                     ],
                     span: Span {
                      start: Position {
                       line: 34,
                       column: 26,
                      },
                      end: Position {
                       line: 37,
                       column: 6,
                      },
                     },
                    },
                   ),
                  },
                 ),
                 KeyValue(
                  BindingKeyValue {
                   from: [
                    Raw(
                     PartRaw {
                      content: "users",
                      span: Span {
                       start: Position {
                        line: 38,
                        column: 5,
                       },
                       end: Position {
                        line: 38,
                        column: 10,
                       },
                      },
                     },
                    ),
                    Raw(
                     PartRaw {
                      content: "groups",
                      span: Span {
                       start: Position {
                        line: 38,
                        column: 11,
                       },
                       end: Position {
                        line: 38,
                        column: 17,
                       },
                      },
                     },
                    ),
                   ],
                   to: Map(
                    Map {
                     recursive: false,
                     bindings: [
                      KeyValue(
                       BindingKeyValue {
                        from: [
                         Raw(
                          PartRaw {
                           content: "brltty",
                           span: Span {
                            start: Position {
                             line: 39,
                             column: 7,
                            },
                            end: Position {
                             line: 39,
                             column: 13,
                            },
                           },
                          },
                         ),
                        ],
                        to: Map(
                         Map {
                          recursive: false,
                          bindings: [],
                          span: Span {
                           start: Position {
                            line: 39,
                            column: 16,
                           },
                           end: Position {
                            line: 39,
                            column: 19,
                           },
                          },
                         },
                        ),
                       },
                      ),
                      KeyValue(
                       BindingKeyValue {
                        from: [
                         Raw(
                          PartRaw {
                           content: "brlapi",
                           span: Span {
                            start: Position {
                             line: 40,
                             column: 7,
                            },
                            end: Position {
                             line: 40,
                             column: 13,
                            },
                           },
                          },
                         ),
                        ],
                        to: Map(
                         Map {
                          recursive: false,
                          bindings: [],
                          span: Span {
                           start: Position {
                            line: 40,
                            column: 16,
                           },
                           end: Position {
                            line: 40,
                            column: 19,
                           },
                          },
                         },
                        ),
                       },
                      ),
                     ],
                     span: Span {
                      start: Position {
                       line: 38,
                       column: 20,
                      },
                      end: Position {
                       line: 41,
                       column: 6,
                      },
                     },
                    },
                   ),
                  },
                 ),
                 KeyValue(
                  BindingKeyValue {
                   from: [
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                     PartRaw {
                      content: "systemd",
                      span: Span {
                       start: Position {
                        line: 43,
                        column: 5,
                       },
                       end: Position {
                        line: 43,
                        column: 12,
                       },
                      },
                     },
                    ),
                    Raw(
                     PartRaw {
                      content: "services",
                      span: Span {
                       start: Position {
                        line: 43,
                        column: 13,
                       },
                       end: Position {
                        line: 43,
                        column: 21,
                       },
                      },
                     },
                    ),
                    Expression(
                     PartExpression {
                      expression: String(
                       String_ {
                        parts: [
                         Raw(
                          PartRaw {
                           content: "brltty@",
                           span: Span {
                            start: Position {
                             line: 43,
                             column: 23,
                            },
                            end: Position {
                             line: 43,
                             column: 30,
                            },
                           },
                          },
                         ),
                        ],
                        span: Span {
                         start: Position {
                          line: 43,
                          column: 22,
                         },
                         end: Position {
                          line: 43,
                          column: 31,
                         },
                        },
                       },
                      ),
                     },
                    ),
                    Raw(
                     PartRaw {
                      content: "serviceConfig",
                      span: Span {
                       start: Position {
                        line: 43,
                        column: 32,
                       },
                       end: Position {
                        line: 43,
                        column: 45,
                       },
                      },
                     },
                    ),
                   ],
                   to: Map(
                    Map {
                     recursive: false,
                     bindings: [
                      KeyValue(
                       BindingKeyValue {
                        from: [
                         Raw(
                          PartRaw {
                           content: "ExecStartPre",
                           span: Span {
                            start: Position {
                             line: 44,
                             column: 9,
                            },
                            end: Position {
                             line: 44,
                             column: 21,
                            },
                           },
                          },
                         ),
                        ],
                        to: String(
                         String_ {
                          parts: [
                           Raw(
                            PartRaw {
                             content: "!",
                             span: Span {
                              start: Position {
                               line: 44,
                               column: 25,
                              },
                              end: Position {
                               line: 44,
                               column: 38,
                              },
                             },
                            },
                           ),
                           Interpolation(
                            PartInterpolation {
                             expression: Identifier(
                              Identifier {
                               id: "genApiKey",
                               span: Span {
                                start: Position {
                                 line: 44,
                                 column: 28,
                                },
                                end: Position {
                                 line: 44,
                                 column: 37,
                                },
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