langchain/retrievers/azure_cognitive_search.py/AzureCognitiveSearchRetriever/_build_search_url
class AzureCognitiveSearchRetriever:    def _build_search_url(self, query: str) -> str:
        base_url = f"https://{self.service_name}.search.windows.net/"
        endpoint_path = f"indexes/{self.index_name}/docs?api-version={self.api_version}"
        return base_url + endpoint_path + f"&search={query}"