MODULE_FRAGMENT name:<built-ins module>
  EXTERNAL_PACKAGE_FRAGMENT fqName:kotlin
    CLASS IR_EXTERNAL_DECLARATION_STUB INTERFACE name:Function1 modality:ABSTRACT visibility:public flags:
      TYPE_PARAMETER IR_EXTERNAL_DECLARATION_STUB name:P1 index:0 variance:in upperBounds:[kotlin.Any?]
      TYPE_PARAMETER IR_EXTERNAL_DECLARATION_STUB name:R index:1 variance:out upperBounds:[kotlin.Any?]
      FUN IR_EXTERNAL_DECLARATION_STUB name:invoke visibility:public modality:ABSTRACT <> (p1:P1) returnType:R flags:
        VALUE_PARAMETER IR_EXTERNAL_DECLARATION_STUB name:p1 index:0 type:P1 flags:
      FUN IR_EXTERNAL_DECLARATION_STUB name:equals visibility:public modality:OPEN <> (other:kotlin.Any?) returnType:Boolean flags:
        VALUE_PARAMETER IR_EXTERNAL_DECLARATION_STUB name:other index:0 type:kotlin.Any? flags:
      FUN IR_EXTERNAL_DECLARATION_STUB name:hashCode visibility:public modality:OPEN <> () returnType:Int flags:
      FUN IR_EXTERNAL_DECLARATION_STUB name:toString visibility:public modality:OPEN <> () returnType:String flags:
