method z.ZodError.prototype.flattenRe-exportimport { z } from "https://deno.land/x/zod@v3.16.0/index.ts"; const { ZodError } = z; flatten(): typeToFlattenedError<T>flatten<U>(mapper?: (issue: ZodIssue) => U): typeToFlattenedError<T, U>flatten<U = string>(mapper?: (issue: ZodIssue) => U): anyReturnstypeToFlattenedError<T>Type ParametersUParametersoptionalmapper: (issue: ZodIssue) => UReturnstypeToFlattenedError<T, U>Type ParametersoptionalU = stringParametersoptionalmapper: (issue: ZodIssue) => U = [UNSUPPORTED]Returnsany