Update huggingface model handler info

sdks/python/apache_beam/yaml/tests/runinference_huggingface.yaml

@@ -25,7 +25,7 @@ pipelines:
         - type: RunInference
           config:
             model_handler:
-              type: "HuggingFacePipeline"
+              type: "HuggingFacePipelineModelHandler"
               config:
                 task: "text-classification"
                 inference_fn:

sdks/python/apache_beam/yaml/yaml_ml.py

@@ -282,8 +282,8 @@ def inference_output_type(self):
                                           ('model_id', Optional[str])])
 
 
-@ModelHandlerProvider.register_handler_type('HuggingFacePipeline')
-class HuggingFacePipelineProvider(ModelHandlerProvider):
+@ModelHandlerProvider.register_handler_type('HuggingFacePipelineModelHandler')
+class HuggingFacePipelineModelHandlerProvider(ModelHandlerProvider):
   def __init__(
       self,
       task: Optional[str] = None,
@@ -294,6 +294,49 @@ def __init__(
       inference_fn: Optional[dict[str, str]] = None,
       load_pipeline_args: Optional[dict[str, Any]] = None,
       **kwargs):
+    """
+    ModelHandler for Hugging Face Pipelines.
+
+    This Model Handler can be used with RunInference to load a model using
+    Hugging Face pipelines. Hugging Face pipelines provide a simple way to
+    perform inference on various tasks (e.g. text classification, token
+    classification, text generation).
+
+    This Model Handler requires either a `task` or `model` to be specified.
+    Preprocessing and Postprocessing are described in more detail in the
+    RunInference docs:
+    https://beam.apache.org/releases/yamldoc/current/#runinference
+
+    For example: ::
+
+        - type: RunInference
+          config:
+            model_handler:
+              type: HuggingFacePipelineModelHandler
+              config:
+                task: text-classification
+                model: distilbert-base-uncased-finetuned-sst-2-english
+                preprocess:
+                  callable: 'lambda x: x.text'
+
+    Args:
+      task: The task for the pipeline. See Hugging Face documentation for
+        a list of supported tasks.
+      model: The model name on Hugging Face hub or a path to a local directory.
+        If the model already defines the task, no need to specify the task.
+      preprocess: A python callable, defined either inline, or using a file,
+        that is invoked on the input row before sending to the model to be
+        loaded by this ModelHandler.
+      postprocess: A python callable, defined either inline, or using a file,
+        that is invoked on the PredictionResult output by the ModelHandler
+        before parsing into the output Beam Row.
+      device: The device to run the pipeline on (e.g., 'cpu', 'cuda', 'cuda:0').
+        Defaults to CPU.
+      inference_fn: The custom inference function to use.
+      load_pipeline_args: Extra arguments to pass to the Hugging Face pipeline
+        loader (e.g. `transformers.pipeline`).
+      **kwargs: Extra arguments to pass to the model handler.
+    """
     try:
       from apache_beam.ml.inference.huggingface_inference import HuggingFacePipelineModelHandler
     except ImportError:
@@ -324,7 +367,7 @@ def __init__(
   def validate(config):
     if not config or (not config.get('task') and not config.get('model')):
       raise ValueError(
-          "HuggingFacePipeline requires either 'task' or "
+          "HuggingFacePipelineModelHandler requires either 'task' or "
           "'model' to be specified.")
 
   def inference_output_type(self):
@@ -488,10 +531,11 @@ def fn(x: PredictionResult):
 
   Args:
     model_handler: Specifies the parameters for the respective
-          enrichment_handler in a YAML/JSON format. To see the full set of
+          model_handler in a YAML/JSON format. To see the full set of
           handler_config parameters, see their corresponding doc pages:
 
             - [VertexAIModelHandlerJSON](https://beam.apache.org/releases/pydoc/current/apache_beam.yaml.yaml_ml.VertexAIModelHandlerJSONProvider) # pylint: disable=line-too-long
+            - [HuggingFacePipelineModelHandler](https://beam.apache.org/releases/pydoc/current/apache_beam.yaml.yaml_ml.HuggingFacePipelineModelHandlerProvider) # pylint: disable=line-too-long
     inference_tag: The tag to use for the returned inference. Default is
       'inference'.
     inference_args: Extra arguments for models whose inference call requires