function readAllFilesimport { readAllFiles } from "https://deno.land/x/importall@v2.0.0/mod.ts"; readAllFiles(dir: string, filter?: (fileName: string) => boolean): Promise<Record<string, Uint8Array>>Parametersdir: stringoptionalfilter: (fileName: string) => boolean = [UNSUPPORTED]ReturnsPromise<Record<string, Uint8Array>>