Module type Parameter_sig.String_datatype_with_collections

module type String_datatype_with_collections = sig .. end

Signature requires to build custom collection parameters in which elements are convertible to string.
Since Sodium-20150201

include Datatype.S_with_collections

val of_string : string -> t

Raises Cannot_build if there is no element corresponding to the given string.

val of_singleton_string : string -> Set.t

If a single string can be mapped to several elements. Can default to Parameter_sig.no_element_of_string to indicate that each string s is mapped exactly to of_string s.

val to_string : t -> string