code: def _drop_index_command(self, command, type, index):
          
          columns = []
  
          if isinstance(index, list):
              columns = index
  
              index = self._create_index_name(type, columns)
  
          return self._index_command(command, columns, index)
docs: Create a new drop index command on the blueprint.
  
          :param command: The command
          :type command: str
  
          :param type: The index type
          :type type: str
  
          :param index: The index name
          :type index: str
  
          :rtype: Fluent