code: def delete_state(self, state):
          
          return self._delete_state(
              activity=state.activity,
              agent=state.agent,
              state_id=state.id,
              etag=state.etag
          )
docs: Delete a specified state from the LRS
  
          :param state: State document to be deleted
          :type state: :class:`tincan.documents.state_document.StateDocument`
          :return: LRS Response object
          :rtype: :class:`tincan.lrs_response.LRSResponse`