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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def vrrp(self, **kwargs):
 """Enable or Disable VRRP. Args: ip_version (str):
 The IP version ('4' or '6') for which VRRP should be enabled/disabled. Default: `4`. enabled (bool):
 If VRRP should be enabled or disabled. Default: ``True``. rbridge_id (str):
 The rbridge ID of the device on which VRRP will be enabled/disabled. Default: `1`. callback (function):
 A function executed upon completion of the method. The only parameter passed to `callback` will be the ``ElementTree`` `config`. Returns: Return value of `callback`. Raises: None Examples: Traceback (most recent call last):
 KeyError """

        ip_version = kwargs.pop('ip_version', '4')
        enabled = kwargs.pop('enabled', True)
        rbridge_id = kwargs.pop('rbridge_id', '1')
        callback = kwargs.pop('callback', self._callback)
        vrrp_args = dict(rbridge_id=rbridge_id)
        vrrp_method = 'rbridge_id_protocol_hide_vrrp_holder_vrrp'
        if ip_version == '6':
            vrrp_method = 'rbridge_id_ipv6_proto_vrrpv3_vrrp'
        vrrp = getattr(self._rbridge, vrrp_method)
        config = vrrp(**vrrp_args)
        if not enabled:
            config.find('.//*vrrp').set('operation', 'delete')
        return callback(config)