Melange_ppx_lib.Ppx_entry
let unsafe_mapper: Melange_compiler_libs.Ast_mapper.mapper;
let rewrite_signature:
Melange_compiler_libs.Parsetree.signature =>
Melange_compiler_libs.Parsetree.signature;
let rewrite_implementation:
Melange_compiler_libs.Parsetree.structure =>
Melange_compiler_libs.Parsetree.structure;