# mapper

inline fun < FromKey , FromValue , ToKey , ToValue > mapper (noinline keyFromToTo: suspend FromKey .() -> ToKey = { this as ToKey }, noinline valueFromToTo: suspend FromValue .() -> ToValue = { this as ToValue }, noinline keyToToFrom: suspend ToKey .() -> FromKey = { this as FromKey }, noinline valueToToFrom: suspend ToValue .() -> FromValue = { this as FromValue }): SimpleMapperRepo < FromKey , FromValue , ToKey , ToValue >(source)