You can search for identifiers within the package.
in-package search v0.2.0
module Location = Location
module Longident = Longident
module type Asttypes = module type of struct include Asttypes end
module Asttypes : Asttypes
module type Parsetree = module type of struct include Parsetree end
module Parsetree : Parsetree
module Docstrings = Docstrings
module Ast_helper = Ast_helper
module Ast_mapper = Ast_mapper