docs: def asset_create_combo(self, name, combo, tag='', description=''):
          '''asset_create_combo name, combination, tag, description
          Creates a new combination asset list.  Operands can be either asset list
          IDs or be a nested combination asset list.
  
          UN-DOCUMENTED CALL: This function is not considered stable.
  
          AND = intersection
          OR = union
          operand = asset list ID or nested combination.
          operator = intersection or union.
  
          Example:
  
          combo = {
              'operand1': {
                  'operand1': '2',
                  'operand2': '2',
                  'operation': 'union',
              },
              'operand2': '3',
              'operation': 'intersection'
          }
  
  
          :param name: Name of the asset list.
          :type name: string
          :param combo: dict
          :param tag: The tag of the asset list.
          :type tag: string
          :param description: Description of the asset list.
          :type description: string
          '''
          return self.raw_query('asset', 'add', data={
              'name': name,
              'description': description,
              'type': 'combination',
              'combinations': combo,
          })