Configures the VRF description

        Args:
            vrf_name (str): The VRF name to configure
            description(str): The string to set the vrf description to
            default (bool): Configures the vrf description to its default value
            disable (bool): Negates the vrf description

        Returns:
            True if the operation was successful otherwise False

def set_description(self, vrf_name, description=None, default=False,
                        disable=False):
        """ Configures the VRF description

        Args:
            vrf_name (str): The VRF name to configure
            description(str): The string to set the vrf description to
            default (bool): Configures the vrf description to its default value
            disable (bool): Negates the vrf description

        Returns:
            True if the operation was successful otherwise False
        """
        cmds = self.command_builder('description', value=description,
                                    default=default, disable=disable)
        return self.configure_vrf(vrf_name, cmds)