def ptransform_fn(fn):
  return CallablePTransform(fn)
Read in the rotating master authentication key
dataset/ETHPy150Open GoogleCloudPlatform/DataflowPythonSDK/google/cloud/dataflow/transforms/ptransform.py/ptransform_fn--crossover with--dataset/ETHPy150Open saltstack/salt/salt/client/__init__.py/LocalClient.__read_master_key