code: def _CreateMultipleValuesCondition(self, values, operator):
      
      values = ['"%s"' % value if isinstance(value, str) or
                isinstance(value, unicode) else str(value) for value in values]
      return '%s %s [%s]' % (self._field, operator, ', '.join(values))
docs: Creates a condition with the provided list of values and operator.