def _get_metric(self):
return self.__metric<EOL>
Getter method for metric, mapped from YANG variable /network_instances/network_instance/mpls/lsps/constrained_path/tunnels/tunnel/config/metric (int32)

    YANG Description: The value of the metric that should be specified. The value
supplied in this leaf is used in conjunction with the metric
type to determine the value of the metric used by the system.
Where the metric-type is set to LSP_METRIC_ABSOLUTE - the
value of this leaf is used directly; where it is set to
LSP_METRIC_RELATIVE, the relevant (positive or negative)
offset is used to formulate the metric; where metric-type
is LSP_METRIC_INHERITED, the value of this leaf is not
utilised