f7/sdk/dart/package-fidl_fidl/UnionFactory.md - reference-docs - Git at Google



 # UnionFactory&lt;T> typedef


     T UnionFactory&lt;{T}> = T Function(int index, Object data)


 ## Implementation

 ```dart
 typedef UnionFactory<T> = T Function(int index, Object data);
 ```



	# UnionFactory<T> typedef










	T UnionFactory<{T}> = T Function(int index, Object data)






	## Implementation

	```dart
	typedef UnionFactory<T> = T Function(int index, Object data);
	```