interface formatters.Formatterimport { type formatters } from "https://deno.land/x/hex@v0.4.9/mod.ts"; const { Formatter } = formatters; Type ParametersoptionalTSource = unknownoptionalTTarget = stringPropertiesnames: readonly string[]serialize: (payload: TSource | Promise<TSource>) => Promise<TTarget>optionaldeserialize: (payload: TTarget | Promise<TTarget>) => Promise<TSource>