def has_value(self, value):
return value in self.values<EOL>
Check if the current ``Choices`` object has the given value.

        Parameters
        ----------
        value: ?
            Value we want to check.

        Returns
        -------
        boolean
            ``True`` if the value is present, ``False`` otherwise.

        Example
        -------

        >>> MY_CHOICES = Choices(('FOO', 1, 'foo'), ('BAR', 2, 'bar'))
        >>> MY_CHOICES.has_value(1)
        True
        >>> MY_CHOICES.has_value(3)
        False