function toCustomimport { toCustom } from "https://deno.land/x/valibot@v0.23.0/mod.ts"; toCustom<TInput>(action: (input: TInput) => TInput): ToCustomTransformation<TInput>Creates a custom transformation function. Type ParametersTInputParametersaction: (input: TInput) => TInputThe transform action. ReturnsToCustomTransformation<TInput>A transformation function.