Repository: huggingface/transformers
Pull request: Fix qwen2-audio chat template audio placeholder insertion

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Fixes https://github.com/vllm-project/vllm/pull/19230#discussion_r2131871974
- Correct `message['type'] == 'audio'` to `content['type'] == 'audio'` in Qwen2-Audio chat template, otherwise the audio placeholder can't be inserted to prompt properly for the below conversation:
```
conversation = [
    {"role": "user", "content": [
        {"type": "audio"},
        {"type": "text", "text": "What does the person say?"},
    ]},
]
```


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Changed files:
filename: src/transformers/models/qwen2_audio/processing_qwen2_audio.py
patch: @@ -248,7 +248,7 @@ def default_chat_template(self):
                     "{{ message['content'] }}
\n"
                 "{% else %}"
                     "{% for content in message['content'] %}"
-                        "{% if 'audio' in content or 'audio_url' in content or message['type'] == 'audio' %}"
+                        "{% if 'audio' in content or 'audio_url' in content or message['type'] == 'audio' or content['type'] == 'audio' %}"
                             "{% set audio_count.value = audio_count.value + 1 %}"
                             "Audio {{ audio_count.value }}: 


\n"
                         "{% elif 'text' in content %}"