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export async function importAll(  dir: string,  filter: (fileName: string) => boolean = (x) => x === "ts" || x === "js") {  const files = Array(...Deno.readDirSync(dir)).filter(    (x) => x.isFile && filter(x.name)  );  const promises = [];  for (const file of files) {    if (      ["ts", "js", "tsx", "jsx"].includes(String(file.name.split(".").at(-1)))    ) {      promises.push(import(`${dir}/${file.name}`));    } else promises.push(Deno.readTextFile(`${dir}/${file.name}`));  }  const result = await Promise.all(promises);  return result;}
export async function readAllTextFiles(  dir: string,  filter: (fileName: string) => boolean = (_) => true): Promise<Record<string, string>> {  const files = Array(...Deno.readDirSync(dir)).filter(    (x) => x.isFile && filter(x.name)  );  const promises = [];  for (const file of files) {    promises.push(Deno.readTextFile(`${dir}/${file.name}`));  }  const result = await Promise.all(promises);  const res: Record<string, string> = {};  for (const i in files) {    res[files[i].name.split(".")[0]] = result[i];  }  return res;}
export async function readAllFiles(  dir: string,  filter: (fileName: string) => boolean = (_) => true): Promise<Record<string, Uint8Array>> {  const files = Array(...Deno.readDirSync(dir)).filter(    (x) => x.isFile && filter(x.name)  );  const promises = [];  for (const file of files) {    promises.push(Deno.readFile(`${dir}/${file.name}`));  }  const result = await Promise.all(promises);  const res: Record<string, Uint8Array> = {};  for (const i in files) {    res[files[i].name.split(".")[0]] = result[i];  }  return res;}