Change how forward is patched to avoid warning on explicit forward call (stanfordnlp#8700)

* Suppress warning on patch

* different patch

Author: chenmoneygithub

dspy/teleprompt/bootstrap_trace.py

@@ -55,7 +55,9 @@ def wrapped_metric(example, prediction, trace=None):
             return prediction.format_reward or format_failure_score
         return metric(example, prediction, trace) if metric else True
 
-    original_forward = program.forward
+    # Use `object.__getattribute__` to bypass the custom hook `Module.__getattribute__` so that we avoid
+    # the warning that `forward` is not accessed through `__call__`.
+    original_forward = object.__getattribute__(program, "forward")
 
     def patched_forward(program_to_use: Module, **kwargs):
         with dspy.context(trace=[]):