CopyPollerBlobClient type
從 傳回 <xref:BlobClient.beginCopyFromURL> 的輪詢器所需的作業 <xref:BlobClient> 定義運作。
type CopyPollerBlobClient = Pick<BlobClient> & { startCopyFromURL(copySource: string, options?: BlobStartCopyFromURLOptions) => Promise<BlobBeginCopyFromURLResponse> }