[FIX] Minor errors in gemini_api.py and internvl2.py. (#502)

* [FIX] Initialize `self.response_persistent_file` to prevent Error

* [FIX] Wrong variable name in `internvl2.py`

lmms_eval/models/gemini_api.py

@@ -52,6 +52,7 @@ def __init__(
         self.timeout = timeout
         self.model = genai.GenerativeModel(model_version)
         self.continual_mode = continual_mode
+        self.response_persistent_file = ""
         self.interleave = interleave
         # if self.continual_mode and response_persistent_folder is None:
         #     raise ValueError("Continual mode requires a persistent path for the response. We will cache the Gemini API response in this path and use it for future requests. Please provide a valid path.")

lmms_eval/models/internvl2.py

@@ -312,7 +312,7 @@ def generate_until(self, requests) -> List[str]:
                     contexts = image_tokens + "\n" + contexts
                 else:
                     pixel_values = None
-                    num_patch_list = None
+                    num_patches_list = None
                 response, history = self.model.chat(self.tokenizer, pixel_values, contexts, gen_kwargs, num_patches_list=num_patches_list, history=None, return_history=True)
             elif self.modality == "video":
                 assert len(visuals) == 1, f"Only one video is supported, but got {len(visuals)} videos."