def __init__(
      self,
      memory_component_key: str = (
          memory_component.DEFAULT_MEMORY_COMPONENT_KEY
      ),
  ):
    """Initializes the observation component.

    Args:
      memory_component_key: Name of the memory component to add observations to
        in `pre_observe` and to retrieve observations from in `pre_act`.
    """
    super().__init__('')
    self._memory_component_key = memory_component_key
Initializes the observation component.

    Args:
      memory_component_key: Name of the memory component to add observations to
        in `pre_observe` and to retrieve observations from in `pre_act`.
    
concordia/components/agent/observation.py