You can search for identifiers within the package.
in-package search v0.2.0
atd
Atd_predef
val list_def : Atd_ast.type_def
val option_def : Atd_ast.type_def
val nullable_def : Atd_ast.type_def
val shared_def : Atd_ast.type_def
val wrap_def : Atd_ast.type_def
val list : (string * int * Atd_ast.type_def option) list
val make_table : unit -> (string, int * Atd_ast.type_def option) Hashtbl.t