@tasklets.tasklet
def delete_multi_async(blob_keys, **options):
  if isinstance(blob_keys, (basestring, BlobKey)):
    raise TypeError('Expected a list, got %r' % (blob_key,))
  rpc = blobstore.create_rpc(**options)
  yield blobstore.delete_async(blob_keys, rpc=rpc)
Output a temporary message at the end of the currently committed
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/ndb/blobstore.py/delete_multi_async--crossover with--dataset/ETHPy150Open signalfx/maestro-ng/maestro/termoutput.py/OutputFormatter.pending