<PackageReference Include="System.Reactive" Version="7.0.0-preview.1" />

System.Reactive.Concurrency.NewThreadScheduler

namespace System.Reactive.Concurrency { public sealed class NewThreadScheduler : LocalScheduler, ISchedulerLongRunning, ISchedulerPeriodic { public static NewThreadScheduler Default { get; } public NewThreadScheduler(); public NewThreadScheduler(Func<ThreadStart, Thread> threadFactory); public IDisposable ScheduleLongRunning<[Nullable(2)] TState>(TState state, Action<TState, ICancelable> action); public IDisposable SchedulePeriodic<[Nullable(2)] TState>(TState state, TimeSpan period, Func<TState, TState> action); } }