[Misc] Rename embedding classes to pooling (#10801)

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

vllm/engine/llm_engine.py

@@ -40,7 +40,7 @@ from vllm.model_executor.guided_decoding import (
     get_local_guided_decoding_logits_processor)
 from vllm.model_executor.layers.sampler import SamplerOutput
 from vllm.multimodal import MULTIMODAL_REGISTRY, MultiModalRegistry
-from vllm.outputs import (EmbeddingRequestOutput, RequestOutput,
+from vllm.outputs import (PoolingRequestOutput, RequestOutput,
                           RequestOutputFactory)
 from vllm.pooling_params import PoolingParams
 from vllm.prompt_adapter.request import PromptAdapterRequest
@@ -80,7 +80,7 @@ def _load_generation_config_dict(model_config: ModelConfig) -> Dict[str, Any]:
 
 
 _G = TypeVar("_G", bound=BaseTokenizerGroup, default=BaseTokenizerGroup)
-_O = TypeVar("_O", RequestOutput, EmbeddingRequestOutput)
+_O = TypeVar("_O", RequestOutput, PoolingRequestOutput)
 
 
 @dataclass
@@ -112,7 +112,7 @@ class SchedulerContext:
     def __init__(self, multi_step_stream_outputs: bool = False):
         self.output_queue: Deque[OutputData] = deque()
         self.request_outputs: List[Union[RequestOutput,
-                                         EmbeddingRequestOutput]] = []
+                                         PoolingRequestOutput]] = []
         self.seq_group_metadata_list: Optional[
             List[SequenceGroupMetadata]] = None
         self.scheduler_outputs: Optional[SchedulerOutputs] = None
@@ -1314,7 +1314,7 @@ class LLMEngine:
                 else:
                     seq.append_token_id(sample.output_token, sample.logprobs)
 
-    def step(self) -> List[Union[RequestOutput, EmbeddingRequestOutput]]:
+    def step(self) -> List[Union[RequestOutput, PoolingRequestOutput]]:
         """Performs one decoding iteration and returns newly generated results.
 
         .. figure:: https://i.imgur.com/sv2HssD.png