code: def _add_fluent_indexes(self):
          
          for column in self._columns:
              for index in ['primary', 'unique', 'index']:
                  column_index = column.get(index)
  
                  if column_index is True:
                      getattr(self, index)(column.name)
  
                      break
                  elif column_index:
                      getattr(self, index)(column.name, column_index)
  
                      break
docs: Add the index commands fluently specified on columns: