<PackageReference Include="System.Reactive" Version="6.1.0-preview.9" />
IEventSource<T>
Represents a data stream signaling its elements by means of an event.
using System.
Runtime.
CompilerServices;
namespace System.
Reactive
{
[
System.
Runtime.
CompilerServices.
NullableContext(
1)]
public interface IEventSource<[
System.
Runtime.
CompilerServices.
Nullable(
2)]
out T>
{
event Action<
T>
OnNext;
}
}