Typedecl_immediacy
exception Error of Location.t * error
val compute_decl : Env.t -> Types.type_declaration -> Type_immediacy.t
val property : (Type_immediacy.t, unit) Typedecl_properties.property
val update_decls : Env.t -> (Ident.t * Typedecl_properties.decl) list -> (Ident.t * Typedecl_properties.decl) list