Merge pull request stanfordnlp#1015 from minki-j/main

Langchain integration bug fixed

Author: arnavsinghvi11

dspy/predict/langchain.py

@@ -9,7 +9,7 @@
 from dspy.predict.parameter import Parameter
 from dspy.predict.predict import Predict
 from dspy.primitives.prediction import Prediction
-from dspy.signatures.field import InputField, OutputField
+from dspy.signatures.field import OldInputField, OldOutputField
 from dspy.signatures.signature import infer_prefix
 
 # TODO: This class is currently hard to test, because it hardcodes gpt-4 usage:
@@ -73,8 +73,8 @@ def _build_signature(self, template):
 
         with dspy.context(lm=gpt4T): parts = dspy.Predict(Template2Signature)(template=template)
 
-        inputs = {k.strip(): InputField() for k in parts.input_keys.split(',')}
-        outputs = {k.strip(): OutputField() for k in parts.output_key.split(',')}
+        inputs = {k.strip(): OldInputField() for k in parts.input_keys.split(',')}
+        outputs = {k.strip(): OldOutputField() for k in parts.output_key.split(',')}
 
         for k, v in inputs.items():
             v.finalize(k, infer_prefix(k))  # TODO: Generate from the template at dspy.Predict(Template2Signature)