💄 log output if save path is requested

Author: shaneahmed

tiatoolbox/models/engine/nucleus_instance_segmentor.py

@@ -565,8 +565,9 @@ def _run_patch_mode(
             **kwargs,
         )
 
-        msg = f"Output file saved at {out}."
-        logger.info(msg=msg)
+        if save_path:
+            msg = f"Output file saved at {out}."
+            logger.info(msg=msg)
         return out
 
     def post_process_patches(  # skipcq: PYL-R0201