code: def validate_multiple_of(value, divisor, **kwargs):
      
      if not decimal.Decimal(str(value)) % decimal.Decimal(str(divisor)) == 0:
          raise ValidationError(
              MESSAGES['multiple_of']['invalid'].format(divisor, value),
          )
docs: Given a value and a divisor, validate that the value is divisible by the
      divisor.