def getMetricVector(self, metric_name, registry=REGISTRY):
return self.getMetricVectorFromFrozenRegistry(<EOL>metric_name, registry.collect())<EOL>
Returns the values for all labels of a given metric.

        The result is returned as a list of (labels, value) tuples,
        where `labels` is a dict.

        This is quite a hack since it relies on the internal
        representation of the prometheus_client, and it should
        probably be provided as a function there instead.