add custom handler

handler.py

@@ -0,0 +1,12 @@
+from typing import Dict, List, Any
+from transformers import pipeline
+
+class EndpointHandler():
+    def __init__(self, path=""):
+      # Load model directly
+        self.pipeline = pipeline("text-generation", model="jdgalvan/Phi-3-mini-128k-instruct", trust_remote_code=True)
+
+    def __call__(self, messages: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+        # execute pipeline
+        response = self.pipeline(messages)
+        return response