type alias Operator.Statelessimport { type Operator } from "https://deno.land/x/windmill@v1.395.0/node_modules/evt/src/lib/types/Operator.ts"; const { Stateless } = Operator; Type ParametersTUdefinition: fλ.Stateless<T, U> | ((data: U) => boolean) | (U extends T ? (data: T) => data is U : never)