docs(alphasense): clarify required model_output_formatter behavior (#173)

Author: VolodymyrBg

src/opengradient/alphasense/run_model_tool.py

@@ -44,7 +44,7 @@ def create_run_model_tool(
 
             This is required to ensure the output is compatible with the tool framework.
 
-            Default returns the InferenceResult object.
+            This argument is required and has no default formatter.
 
             InferenceResult has attributes:
                 * transaction_hash (str): Blockchain hash for the transaction