Change the default returned

Author: rads-1996

instrumentation/opentelemetry-instrumentation-genai-langchain/src/opentelemetry/instrumentation/genai/langchain/callback_handler.py

@@ -176,15 +176,15 @@ def _prompt_variables(
 ) -> dict[str, Any]:
     raw_prompt_config = serialized.get("kwargs")
     if not isinstance(raw_prompt_config, Mapping):
-        return dict(inputs)
+        return {}
     prompt_config = cast(Mapping[str, Any], raw_prompt_config)
 
     raw_input_variables = prompt_config.get("input_variables")
     if not isinstance(raw_input_variables, list):
-        return dict(inputs)
+        return {}
     untyped_input_variables = cast(list[Any], raw_input_variables)
     if not all(isinstance(key, str) for key in untyped_input_variables):
-        return dict(inputs)
+        return {}
     input_variables = cast(list[str], untyped_input_variables)
 
     partial_variables = prompt_config.get("partial_variables")

instrumentation/opentelemetry-instrumentation-genai-langchain/tests/test_callback_handler.py

@@ -507,7 +507,13 @@ def test_prompt_context_from_parent(self):
             parent_run_id, None, None
         )
         handler.on_chain_start(
-            serialized={"name": "PromptTemplate"},
+            serialized={
+                "name": "PromptTemplate",
+                "kwargs": {
+                    "input_variables": ["name"],
+                    "partial_variables": {},
+                },
+            },
             inputs={"name": "Ada"},
             run_id=_run_id(),
             parent_run_id=parent_run_id,
@@ -708,7 +714,7 @@ def test_prompt_template_legacy_name_fallback(self, template_type: str):
 
         assert handler._invocation_manager.get_prompt_context(
             parent_run_id
-        ) == (template_type, {"name": "Ada"})
+        ) == (template_type, {})
 
     def test_non_prompt_id_takes_precedence_over_prompt_name(self):
         handler, _, _, _ = _make_handler()