Fix typo

Author: dsikka

src/deepsparse/v2/text_generation/prep_for_single_engine.py

@@ -39,7 +39,7 @@ def can_operate(self, inp: Any, context: Context, inference_state: InferenceStat
         kv_cache = inp.get("kv_cache")
         tokens = inp.get("tokens")
         # if 0 prompt tokens remain, can't operate (multi-token engine has already run)
-        if len(tokens) == kv_cache.total_num_processed_tokens == 0:
+        if len(tokens) == kv_cache.total_num_processed_tokens:
             return False
 
         # if number of prompt tokens left to process is >= self.prompt_sequnce_length