文件
上传文件
$client->files->upload(string file, ?int expiresInSeconds, ?string workspaceID): FileMetadataPOST/v1/files
列出文件
$client->files->list(?list<string> ids, ?int limit, ?string page, ?string workspaceID): PageCursor<FileMetadata>GET/v1/files
下载文件
$client->files->download(string fileID, ?string workspaceID): downloadGET/v1/files/{file_id}/content
获取文件元数据
$client->files->retrieveMetadata(string fileID, ?string workspaceID): FileMetadataGET/v1/files/{file_id}
删除文件
$client->files->delete(string fileID, ?string workspaceID): DeletedFileDELETE/v1/files/{file_id}