function arrContainsimport { arrContains } from "https://deno.land/x/evt@v2.5.2/tools/reducers/contains.ts"; arrContains<ArrOf>(arr: readonly ArrOf[], matcher: (e: ArrOf) => boolean): booleanType ParametersArrOfParametersarr: readonly ArrOf[]matcher: (e: ArrOf) => booleanReturnsboolean