Duplicate GeminiAdapter class definition found

Nobody has claimed this yet.

I've noticed that there are two identical class definitions for `GeminiAdapter` in the same file. This appears to be an unintended duplication.

- File: `fastchat/model/model_adapter.py`
- Lines: 1202-1212 and 2193-2205
```python
# fastchat/model/model_adapter.py

# line 1202
class GeminiAdapter(BaseModelAdapter):
"""The model adapter for Gemini"""

def match(self, model_path: str):
return "gemini" in model_path.lower() or "bard" in model_path.lower()

def load_model(self, model_path: str, from_pretrained_kwargs: dict):
raise NotImplementedError()

def get_default_conv_template(self, model_path: str) -> Conversation:
return get_conv_template("gemini")

# line 2193
class GeminiAdapter(BaseModelAdapter):
"""The model adapter for Gemini"""

def match(self, model_path: str):
return "gemini" in model_path.lower() or "bard" in model_path.lower()

def load_model(self, model_path: str, from_pretrained_kwargs: dict):
raise NotImplementedError()

def get_default_conv_template(self, model_path: str) -> Conversation:
if "gemini-1.5-pro" in model_path:
return get_conv_template("gemini-1.5-pro")
return get_conv_template("gemini")

```
The classes are identical except for the `get_default_conv_template` method. The second definition includes an additional check for "gemini-1.5-pro".

Suggestion:
Consider merging these two class definitions, keeping the more specific `get_default_conv_template` method from the second definition. This would avoid confusion and potential issues with class resolution.

Please let me know if you need any further information or clarification.

Open fastchat/model/model_adapter.py and inspect both GeminiAdapter definitions at lines 1202-1212 and 2193-2205. Compare their behavior and retain one definition with the gemini-1.5-pro handling described in the issue. Done means the duplicate definition is removed without losing either adapter behavior.

Written by the indexing model from the issue text.