func Delete(c context.Context, blobKey appengine.BlobKey) error {
	return DeleteMulti(c, []appengine.BlobKey{blobKey})
}
func Delete(c context.Context, blobKey appengine.BlobKey) error {
	return DeleteMulti(c, []appengine.BlobKey{blobKey})
}
func Delete ( c context . Context , blobKey appengine . BlobKey ) error { return DeleteMulti ( c , [ ] appengine . BlobKey { blobKey } ) }
// Delete deletes a blob.
Delete deletes a blob .