[Bugfix] Support both list and generator mode & fix unnecessary error log (#599)

Signed-off-by: Gaohan123 <hgaoaf@connect.ust.hk>
Signed-off-by: Hongsheng Liu <liuhongsheng4@huawei.com>
Co-authored-by: Hongsheng Liu <liuhongsheng4@huawei.com>

docs/user_guide/examples/offline_inference/qwen2_5_omni.md

@@ -12,7 +12,7 @@ Get into the example folder
 ```bash
 cd examples/offline_inference/qwen2_5_omni
 ```
-Then run the command below.
+Then run the command below. Note: for processing large volume data, it uses py_generator mode, which will return a python generator from Omni class.
 ```bash
 bash run_multiple_prompts.sh
 ```

docs/user_guide/examples/offline_inference/qwen3_omni.md

@@ -12,7 +12,7 @@ Get into the example folder
 ```bash
 cd examples/offline_inference/qwen3_omni
 ```
-Then run the command below.
+Then run the command below. Note: for processing large volume data, it uses py_generator mode, which will return a python generator from Omni class.
 ```bash
 bash run_multiple_prompts.sh
 ```
@@ -92,3 +92,7 @@ sudo apt install ffmpeg
     ``````sh
     --8<-- "examples/offline_inference/qwen3_omni/run_single_prompt_tp.sh"
     ``````
+??? abstract "text_prompts_10.txt"
+    ``````txt
+    --8<-- "examples/offline_inference/qwen3_omni/text_prompts_10.txt"
+    ``````

docs/user_guide/examples/offline_inference/text_to_image.md

@@ -19,7 +19,7 @@ if __name__ == "__main__":
     omni = Omni(model="Qwen/Qwen-Image")
     prompt = "a cup of coffee on the table"
     outputs = omni.generate(prompt)
-    images = list(outputs)[0].request_output[0].images
+    images = outputs[0].request_output[0].images
     images[0].save("coffee.png")
 ```