parameters: (self, transfer_id)
return_statement: return self._transfer_states[transfer_id].done
docstring: Determine a particular transfer is complete
  
          :param transfer_id: Unique identifier for the transfer
          :return: True, if done. False, otherwise.
docstring_summary: Determine a particular transfer is complete
docstring_tokens: Determine a particular transfer is complete
function: def is_done(self, transfer_id):
          """Determine a particular transfer is complete
  
          :param transfer_id: Unique identifier for the transfer
          :return: True, if done. False, otherwise.
          """
          return self._transfer_states[transfer_id].done
function_tokens: def is_done ( self , transfer_id ) : return self . _transfer_states [ transfer_id ] . done