method z.ZodType.prototype._refinementimport { z } from "https://dotland.deno.dev/x/zod@v3.23.8/mod.ts"; const { ZodType } = z; _refinement(refinement: RefinementEffect<Output>["refinement"]): ZodEffects<this, Output, Input>Parametersrefinement: RefinementEffect<Output>["refinement"]ReturnsZodEffects<this, Output, Input>