[CI] Fix `tests/v1/e2e/test_kv_sharing_fast_prefill.py` import on test (#22815)

Signed-off-by: NickLucche <nlucches@redhat.com>

tests/v1/e2e/test_kv_sharing_fast_prefill.py

@@ -11,7 +11,8 @@ from vllm import LLM, SamplingParams
 from vllm.config import CompilationConfig, CompilationLevel
 from vllm.distributed import cleanup_dist_env_and_memory
 from vllm.forward_context import get_forward_context
-from vllm.model_executor.models.gemma3n import Gemma3nForConditionalGeneration
+from vllm.model_executor.models.gemma3n_mm import (
+    Gemma3nForConditionalGeneration)
 from vllm.model_executor.models.registry import ModelRegistry
 from vllm.model_executor.models.utils import extract_layer_index
 from vllm.sequence import IntermediateTensors
@@ -32,12 +33,13 @@ class TestGemma3nForConditionalGeneration(Gemma3nForConditionalGeneration):
         inputs_embeds: Optional[torch.Tensor] = None,
         **kwargs,
     ) -> Union[torch.Tensor, IntermediateTensors]:
-        hidden_states = self.model(input_ids, positions, intermediate_tensors,
-                                   inputs_embeds, **kwargs)
+        hidden_states = super().forward(input_ids, positions,
+                                        intermediate_tensors, inputs_embeds,
+                                        **kwargs)
         attn_metadata = get_forward_context().attn_metadata
         # attn_metadata is None during dummy runs
         if (attn_metadata is not None
-                and self.cache_config.kv_sharing_fast_prefill):
+                and self.language_model.cache_config.kv_sharing_fast_prefill):
             assert isinstance(attn_metadata, dict)  # true in V1
             # Gemma3n-E2B has 30 layers, with last 20 layers being
             # cross-decoder layers. Check attention metadata is correct
@@ -52,7 +54,7 @@ class TestGemma3nForConditionalGeneration(Gemma3nForConditionalGeneration):
 
             # Last layer will be a KV sharing layer
             layer_attn_metadata = attn_metadata[
-                self.model.language_model.layers[-1].self_attn.attn.layer_name]
+                self.language_model.model.layers[-1].self_attn.attn.layer_name]
             logits_indices_padded = (layer_attn_metadata.logits_indices_padded)
             assert logits_indices_padded is not None
             num_logits_indices = layer_attn_metadata.num_logits_indices