initial commit

venv/Lib/site-packages/langchain_classic/runnables/hub.py

@@ -0,0 +1,42 @@
+from typing import Any
+
+from langchain_core.runnables.base import RunnableBindingBase
+from langchain_core.runnables.utils import Input, Output
+
+
+class HubRunnable(RunnableBindingBase[Input, Output]):  # type: ignore[no-redef]
+    """An instance of a runnable stored in the LangChain Hub."""
+
+    owner_repo_commit: str
+
+    def __init__(
+        self,
+        owner_repo_commit: str,
+        *,
+        api_url: str | None = None,
+        api_key: str | None = None,
+        **kwargs: Any,
+    ) -> None:
+        """Initialize the `HubRunnable`.
+
+        Args:
+            owner_repo_commit: The full name of the prompt to pull from in the format of
+                `owner/prompt_name:commit_hash` or `owner/prompt_name`
+                or just `prompt_name` if it's your own prompt.
+            api_url: The URL of the LangChain Hub API.
+                Defaults to the hosted API service if you have an api key set,
+                or a localhost instance if not.
+            api_key: The API key to use to authenticate with the LangChain Hub API.
+            **kwargs: Additional keyword arguments to pass to the parent class.
+        """
+        from langchain_classic.hub import pull
+
+        pulled = pull(owner_repo_commit, api_url=api_url, api_key=api_key)
+        super_kwargs = {
+            "kwargs": {},
+            "config": {},
+            **kwargs,
+            "bound": pulled,
+            "owner_repo_commit": owner_repo_commit,
+        }
+        super().__init__(**super_kwargs)