feat(model): add to_atlas_dict() method to Referenceable base class

Adds a convenience method that produces an Atlas-compatible dict from any
pyatlan model object. This is the format expected by the application-sdk's
JsonFileWriter and eliminates the json.loads(asset.json(...)) round-trip
that every connector currently has to do manually. (BLDX-740)

Author: fyzanshaik-atlan

pyatlan/model/assets/core/referenceable.py

@@ -92,6 +92,15 @@ async def json_async(self, *args, **kwargs) -> str:
             self.business_attributes = business_attrs
         return super().json(**kwargs)
 
+    def to_atlas_dict(self) -> "Dict[str, Any]":
+        """Return an Atlas-compatible dict for use with application-sdk JsonFileWriter.
+
+        Produces the standard Atlas entity format with camelCase keys and no None values::
+
+            {"typeName": "...", "attributes": {"qualifiedName": "...", ...}}
+        """
+        return loads(self.json(by_alias=True, exclude_none=True))
+
     def validate_required(self):
         if not self.create_time or self.created_by:
             self.attributes.validate_required()