code: def get_connection(cls):
          
          if cls.__connection_obj is None:
              if cls.__connection_fn is None:
                  _, cls.__connection_fn = cls.from_settings()
              cls.__connection_obj = cls.__connection_fn()
          return cls.__connection_obj
docs: Return connection object.
  
          :rtype: :class:`cloud_browser.cloud.base.CloudConnection`