[Bugfix] Add missing `get_language_model` to new MLLMs (#17300)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

vllm/model_executor/models/kimi_vl.py

@@ -369,6 +369,9 @@ class KimiVLForConditionalGeneration(nn.Module, SupportsMultiModal):
         return self.multi_modal_projector(
             torch.cat(image_features)).split(lengths)
 
+    def get_language_model(self) -> torch.nn.Module:
+        return self.language_model
+
     def get_multimodal_embeddings(self,
                                   **kwargs: object) -> Optional[NestedTensors]:
         # Validate the multimodal input keyword arguments

vllm/model_executor/models/qwen2_5_omni_thinker.py

@@ -809,6 +809,9 @@ class Qwen2_5OmniThinkerForConditionalGeneration(
                     "audio"] = self._parse_and_validate_audio_input(**kwargs)
         return mm_input_by_modality
 
+    def get_language_model(self) -> torch.nn.Module:
+        return self.language_model
+
     def get_multimodal_embeddings(
             self, **kwargs: object) -> Optional[MultiModalEmbeddings]: