Accept the copilot suggestion for better output

Author: MGAMZ

src/spikeinterface/core/sortinganalyzer.py

@@ -1636,14 +1636,14 @@ def compute(self, input, save=True, extension_params=None, verbose=False, **kwar
             params_, job_kwargs = split_job_kwargs(kwargs)
             assert len(params_) == 0, (
                 "Too many arguments for SortingAnalyzer.compute_several_extensions(), "
-                f"they are: {list(params_.keys())}"
+                f"they are: {set(params_)}"
             )
             self.compute_several_extensions(extensions=input, save=save, verbose=verbose, **job_kwargs)
         elif isinstance(input, list):
             params_, job_kwargs = split_job_kwargs(kwargs)
             assert len(params_) == 0, (
                 "Too many arguments for SortingAnalyzer.compute_several_extensions(), "
-                f"they are: {list(params_.keys())}"
+                f"they are: {set(params_)}"
             )
             extensions = {k: {} for k in input}
             if extension_params is not None: