text: // Constants:
  const DEFAULT_DIRECTORY = './tractor/mock-requests';
  const DEFAULT_DOMAIN = 'localhost';
  const DEFAULT_HEADERS = {};
  const DEFAULT_PORT = 8765;
  
  export function config (tractorConfig) {
      tractorConfig.mockRequests = tractorConfig.mockRequests || {};
      let { mockRequests } = tractorConfig;
      mockRequests.directory = mockRequests.directory || DEFAULT_DIRECTORY;
      mockRequests.domain = mockRequests.domain || DEFAULT_DOMAIN;
      mockRequests.headers = mockRequests.headers || DEFAULT_HEADERS;
      mockRequests.port = mockRequests.port || DEFAULT_PORT;
      return mockRequests;
  }
  