code: def get_chain_sequence_string(self, chain_id, use_seqres_sequences_if_possible, raise_Exception_if_not_found = True):
          '''Similar to get_annotated_chain_sequence_string except that we only return the Sequence and do not state which sequence it was.'''
          chain_pair = self.get_annotated_chain_sequence_string(chain_id, use_seqres_sequences_if_possible, raise_Exception_if_not_found = raise_Exception_if_not_found)
          if chain_pair:
              return chain_pair[1]
          return Nonf get_chain_sequence_string(self, chain_id, use_seqres_sequences_if_possible, raise_Exception_if_not_found = True):
          '''Similar to get_annotated_chain_sequence_string except that we only return the Sequence and do not state which sequence it was.'''
          chain_pair = self.get_annotated_chain_sequence_string(chain_id, use_seqres_sequences_if_possible, raise_Exception_if_not_found = raise_Exception_if_not_found)
          if chain_pair:
              return chain_pair[1]
          return None
docs: Similar to get_annotated_chain_sequence_string except that we only return the Sequence and do not state which sequence it was.