code: def setup(self):
          '''
          Ensures the path to the watched file exists and we have a state
          listener
          '''
          self.zoo_client.add_listener(self.state_listener)
  
          if self.ensure:
              self.zoo_client.ensure_path(self.my_filef setup(self):
          '''
          Ensures the path to the watched file exists and we have a state
          listener
          '''
          self.zoo_client.add_listener(self.state_listener)
  
          if self.ensure:
              self.zoo_client.ensure_path(self.my_file)
docs: Ensures the path to the watched file exists and we have a state
          listener