You can search for identifiers within the package.
in-package search v0.2.0
val core_type : path:string -> Parsetree.core_type -> Parsetree.expression
val sig_type_decl : poly:bool -> loc:Location.t -> path:string -> (Asttypes.rec_flag * Parsetree.type_declaration list) -> Parsetree.signature
val str_type_decl : loc:Location.t -> poly:bool -> path:string -> (Asttypes.rec_flag * Parsetree.type_declaration list) -> Parsetree.structure