public Task<T> CreateGenericBookmarkAsync<T>(
	GenericBookmarkProperties prop,
	Func<Response, T> onResult,
	AsyncHandle asyncHandle = null
)

Public Function CreateGenericBookmarkAsync(Of T) ( 
	prop As GenericBookmarkProperties,
	onResult As Func(Of Response, T),
	Optional asyncHandle As AsyncHandle = Nothing
) As Task(Of T)