New DatasetSet model

closes #1712 (closed)

TODO:

• create process dataset issue
• create new API endpoints issue

arkindex/training/api.py

@@ -790,6 +790,14 @@ class DatasetElements(CorpusACLMixin, ListCreateAPIView):
 @extend_schema_view(
     delete=extend_schema(
         operation_id="DestroyDatasetElement",
+        parameters=[
+            OpenApiParameter(
+                "set",
+                type=str,
+                description="Name of the set from which to remove the element.",
+                required=True,
+            )
+        ],
         tags=["datasets"]
     )
 )