text: #!/usr/bin/env python3
  # Copyright (c) 2017-2019 The Bitcoin Core developers
  # Copyright (c) 2017-2019 The Raven Core developers
  # Copyright (c) 2018-2019 The Rito Core developers
  # Copyright (c) 2019 The Valuero developers
  # Distributed under the MIT software license, see the accompanying
  # file COPYING or http://www.opensource.org/licenses/mit-license.php.
  """Create a blockchain cache.
  
  Creating a cache of the blockchain speeds up test execution when running
  multiple functional tests. This helper script is executed by test_runner when multiple
  tests are being run in parallel.
  """
  
  from test_framework.test_framework import ValueroTestFramework
  
  class CreateCache(ValueroTestFramework):
      # Test network and test nodes are not required:
  
      def set_test_params(self):
          self.num_nodes = 0
  
      def setup_network(self):
          pass
  
      def run_test(self):
          pass
  
  if __name__ == '__main__':
      CreateCache().main()
  