code: def initialize_wind_turbine_cluster(example_farm, example_farm_2):
      r
  
      # specification of cluster data
      example_cluster_data = {
          'name': 'example_cluster',
          'wind_farms': [example_farm, example_farm_2]}
  
      # initialize WindTurbineCluster object
      example_cluster = WindTurbineCluster(**example_cluster_data)
  
      return example_cluster
docs: r"""
      Initializes a :class:`~.wind_turbine_cluster.WindTurbineCluster` object.
  
      Function shows how to initialize a WindTurbineCluster object. In this case
      the cluster only contains two wind farms.
  
      Parameters
      ----------
      example_farm : WindFarm
          WindFarm object.
      example_farm_2 : WindFarm
          WindFarm object constant wind farm efficiency and coordinates.
  
      Returns
      -------
      WindTurbineCluster