def graceful_restart=(enable)
      if platform == :ios_xr && @vrf != 'default'
        fail Cisco::UnsupportedError.new('bgp', 'graceful_restart', 'set',
                                         'graceful_restart is not ' \
                                         'configurable ' \
                                         'on a per-VRF basis on IOS XR')
      end
      @set_args[:state] = (enable ? '' : 'no')
      config_set('bgp', 'graceful_restart', @set_args)
      set_args_keys_default
    end
def graceful_restart=(enable)
      if platform == :ios_xr && @vrf != 'default'
        fail Cisco::UnsupportedError.new('bgp', 'graceful_restart', 'set',
                                         'graceful_restart is not ' \
                                         'configurable ' \
                                         'on a per-VRF basis on IOS XR')
      end
      @set_args[:state] = (enable ? '' : 'no')
      config_set('bgp', 'graceful_restart', @set_args)
      set_args_keys_default
    end
Graceful Restart Setters