fix: add ubinary to valueerror

st_quantize.py

@@ -101,7 +101,7 @@ class FlexibleQuantizer(Module):
             )
         else:
             raise ValueError(
-                f"Invalid quantization type: {quantization}. Must be 'binary' or 'int8'."
+                f"Invalid quantization type: {quantization}. Must be 'binary', 'ubinary', or 'int8'."
             )
         return features