Merge pull request #1 from VowpalWabbit/add_rl_chain

Initial commit of rl_chain code

libs/langchain/langchain/chains/rl_chain/__init__.py

@@ -0,0 +1,28 @@
+from langchain.chains.rl_chain.pick_best_chain import PickBest
+from langchain.chains.rl_chain.base import (
+    Embed,
+    BasedOn,
+    ToSelectFrom,
+    SelectionScorer,
+    AutoSelectionScorer,
+    Embedder,
+    Policy,
+    VwPolicy,
+)
+
+import logging
+
+
+def configure_logger():
+    logger = logging.getLogger(__name__)
+    logger.setLevel(logging.INFO)
+    ch = logging.StreamHandler()
+    formatter = logging.Formatter(
+        "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
+    )
+    ch.setFormatter(formatter)
+    ch.setLevel(logging.INFO)
+    logger.addHandler(ch)
+
+
+configure_logger()