public override IPublisher<TOut> Create(
	MaterializationContext context,
	out TaskCompletionSource<TOut> materializer
)

abstract Create : 
        context : MaterializationContext * 
        materializer : TaskCompletionSource<'TOut> byref -> IPublisher<'TOut> 
override Create : 
        context : MaterializationContext * 
        materializer : TaskCompletionSource<'TOut> byref -> IPublisher<'TOut>