text: #
  # Copyright 2015 The ndb Authors. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import os
  import tempfile
  
  from .google_imports import datastore_pbs
  
  from googledatastore import datastore_emulator
  
  class LocalCloudDatastoreFactory(
      datastore_emulator.DatastoreEmulatorFactory):
  
    def __init__(self):
      working_directory = tempfile.mkdtemp()
      gcd_zip = os.getenv('GCD_ZIP')
      if not gcd_zip or not os.path.exists(gcd_zip):
        raise ValueError('Must provide a valid path to the gcd.zip file in the '
                         'environment variable GCD_ZIP')
      super(LocalCloudDatastoreFactory, self).__init__(working_directory, gcd_zip)
  