docs: standard tests to markdown, load templates from files (#28603)

libs/cli/langchain_cli/integration_template/tests/integration_tests/test_retrievers.py

@@ -19,6 +19,6 @@ class Test__ModuleName__Retriever(RetrieversIntegrationTests):
     @property
     def retriever_query_example(self) -> str:
         """
-        Returns a dictionary representing the "args" of an example retriever call.
+        Returns a str representing the "query" of an example retriever call.
         """
         return "example query"