update handler class name

handler.py

@@ -2,7 +2,7 @@ from typing import Dict, List, Any
 from transformers import TrOCRProcessor, VisionEncoderDecoderModel
 
 
-class PreTrainedPipeline():
+class EndpointHandler():
     def __init__(self, path=""):
       self.processor = TrOCRProcessor.from_pretrained(path)
       self.model = VisionEncoderDecoderModel.from_pretrained(path)
@@ -18,4 +18,4 @@ class PreTrainedPipeline():
         
         # decode output
         prediction = generated_text = self.processor.batch_decode(generated_ids, skip_special_tokens=True)
-        return {"text":prediction[0]}
+        return {"text":prediction[0]}