Method then

src/compat/storage/task.ts:13–13

(
    onFulfilled?: ((a: UploadTaskSnapshot) => any) | null,
    onRejected?: ((a: Error) => any) | null
  )

  cancel(): boolean;
  resume(): boolean;
  then(
    onFulfilled?: ((a: UploadTaskSnapshot) => any) | null,
    onRejected?: ((a: Error) => any) | null
  ): Promise<any>;