Async variant of UpdateMulti(IEntity, IPredicate). Updates in the persistent storage all entities of the type this collection is for which have data in common with the specified entity. Which fields are updated in those matching entities depends on which fields are changed in entityWithNewValues. The new values of these fields are read from entityWithNewValues.

Task<int> UpdateMultiAsync(
	IEntity entityWithNewValues,
	IPredicate updateFilter,
	CancellationToken cancellationToken
)

Function UpdateMultiAsync ( 
	entityWithNewValues As IEntity,
	updateFilter As IPredicate,
	cancellationToken As CancellationToken
) As Task(Of Integer)