added deepeval metric measure

Author: wrisa

instrumentation-genai/opentelemetry-genai-sdk/src/opentelemetry/genai/sdk/deepeval.py

@@ -0,0 +1,13 @@
+from deepeval.models import DeepEvalBaseLLM
+from deepeval.test_case import LLMTestCase
+from deepeval.metrics import AnswerRelevancyMetric
+
+
+def evaluate_answer_relevancy_metric(prompt:str, output:str, retrieval_context:list) -> AnswerRelevancyMetric:
+    test_case = LLMTestCase(input=prompt,
+                            actual_output=output,
+                            retrieval_context=retrieval_context,)
+    relevancy_metric = AnswerRelevancyMetric(threshold=0.5)
+    relevancy_metric.measure(test_case)
+    print(relevancy_metric.score, relevancy_metric.reason)
+    return relevancy_metric