feat: Add support for referencing registered metrics by resource name in evaluation run API

PiperOrigin-RevId: 878604099

Author: vertex-sdk-bot

vertexai/_genai/_evals_common.py

@@ -1329,6 +1329,15 @@ def _resolve_evaluation_run_metrics(
     for metric_instance in metrics:
         if isinstance(metric_instance, types.EvaluationRunMetric):
             resolved_metrics_list.append(metric_instance)
+        elif isinstance(metric_instance, str) and metric_instance.startswith(
+            "projects/"
+        ):
+            resolved_metrics_list.append(
+                types.EvaluationRunMetric(
+                    metric=metric_instance.split("/")[-1],
+                    metric_resource_name=metric_instance,
+                )
+            )
         elif isinstance(
             metric_instance, _evals_metric_loaders.LazyLoadedPrebuiltMetric
         ):