message: chore: fix to work uploadFile and downloadFile scripts
diff: import { KintoneAPIClient } from "../src";
  +const APP_ID = 8;
  +
  export class File {
  private client: KintoneAPIClient;
  constructor(client: KintoneAPIClient) {
  @@ -7,14 +9,32 @@ export class File {
  }
  public async uploadFile() {
  - try {
  - console.log(
  - await this.client.file.uploadFile({
  - file: { name: "Hello.txt", data: "Hello World!" }
  - })
  - );
  - } catch (error) {
  - console.log(error);
  + const { fileKey } = await this.client.file.uploadFile({
  + file: { name: "Hello.text", data: "Hello World!" }
  + });
  + console.log(fileKey);
  + this.client.record.addRecord({
  + app: APP_ID,
  + record: {
  + Customer: {
  + value: `fileKey: ${fileKey}`
  + },
  + Attachment: {
  + value: [{ fileKey }]
  + }
  + }
  + });
  }
  +
  + public async downloadFile() {
  + const { record } = await this.client.record.getRecord({
  + app: APP_ID,
  + id: 537
  + });
  +
  + const data = await this.client.file.downloadFile({
  + fileKey: record.Attachment.value[0].fileKey
  + });
  + console.log(data.toString());
  }
  }
  