human
Complete the below
def interface_field(interfaces, **field_kwargs):

    ''''A ``PClass`` field which checks that the assigned value provides all the
    ``interfaces``.
    :param tuple interfaces: The ``Interface`` that a value must provide.'
    '''
 ... Can you provide a the Python program you requested?
assistant
#Here is the Python program you requested.
    if (not isinstance(interfaces, tuple)):
        raise TypeError('The    ``interfaces``    argument    must    be    a    tuple.    Got:    {!r}'.format(interfaces))
    original_invariant = field_kwargs.pop('invariant', None)
    def invariant(value):
        error_messages = []
        if (original_invariant is not None):
            (original_invariant_result, _original_invariant_message) = original_invariant(value)
            if original_invariant_result:
                error_messages.append(original_invariant_result)
        missing_interfaces = []
        for interface in interfaces:
            if (not interface.providedBy(value)):
                missing_interfaces.append(interface.getName())
        if missing_interfaces:
            error_messages.append('The    value    {!r}    did    not    provide    these    required    interfaces:    {}'.format(value, ',    '.join(missing_interfaces)))
        if error_messages:
            return (False, '\n'.join(error_messages))
        else:
            return (True, '')
    field_kwargs['invariant'] = invariant
    return field(**field_kwargs)