Of (melange.Melange_compiler_libs.Ast

let mk: 
  ?loc:loc =>
  ?attrs:attrs =>
  Parsetree.object_field_desc =>
  Parsetree.object_field;

let tag: 
  ?loc:loc =>
  ?attrs:attrs =>
  with_loc(Asttypes.label) =>
  Parsetree.core_type =>
  Parsetree.object_field;

let inherit_: ?loc:loc => Parsetree.core_type => Parsetree.object_field;