Update utils.py

utils.py

@@ -0,0 +1,8 @@
+class CitingSources:
+    def __init__(self, sources):
+        self.sources = sources
+
+    @staticmethod
+    def from_pydantic_models(sources, output_type):
+        # Placeholder function to mimic pydantic behavior
+        return CitingSources(sources)