(self, metas)
Delete multiple blobs.

        :param metas: The list of `BlobMeta` objects for blobs to delete.
        :returns: True if all the blobs were deleted else false. `None` if
        it is not known if the blob was deleted or not.
Delete multiple blobs.
Delete multiple blobs .
def bulk_delete(self, metas):
        """Delete multiple blobs.

        :param metas: The list of `BlobMeta` objects for blobs to delete.
        :returns: True if all the blobs were deleted else false. `None` if
        it is not known if the blob was deleted or not.
        """
        raise NotImplementedError
def bulk_delete ( self , metas ) : raise NotImplementedError