diff --git a/lib/galaxy/model/__init__.py b/lib/galaxy/model/__init__.py index 63318fdec3ee..97ff0f6b0fbf 100644 --- a/lib/galaxy/model/__init__.py +++ b/lib/galaxy/model/__init__.py @@ -6507,7 +6507,7 @@ def dataset_elements_and_identifiers(self, identifiers=None): return elements @property - def first_dataset_element(self) -> Optional[HistoryDatasetAssociation]: + def first_dataset_element(self) -> Optional["DatasetCollectionElement"]: for element in self.elements: if element.is_collection: first_element = element.child_collection.first_dataset_element