Apply suggestion from @romanlutz

Co-authored-by: Roman Lutz <romanlutz13@gmail.com>

Author: fitzpr

pyrit/prompt_target/common/prompt_target.py

@@ -225,11 +225,7 @@ def supported_input_modalities(self) -> "set[PromptDataType]":
         Returns:
             set[PromptDataType]: Set of all individual modalities that appear in any supported combination.
         """
-        all_modalities = set()
-        supported_modalities = self.SUPPORTED_INPUT_MODALITIES  # Works with both class attr and property
-        for modality_set in supported_modalities:
-            all_modalities.update(modality_set)
-        return all_modalities
+        return {frozenset(s) for s in self.SUPPORTED_INPUT_MODALITIES}
 
     @property
     def supported_output_modalities(self) -> "set[PromptDataType]":