<PackageReference Include="System.Diagnostics.DiagnosticSource" Version="11.0.0-rc.1.26425.128" />

System.Diagnostics.SampleActivity<T>

public sealed delegate SampleActivity<T> : MulticastDelegate
A delegate that defines the signature of the ActivityListener callbacks used in the sampling process.
public SampleActivity(object object, IntPtr method)

public virtual IAsyncResult BeginInvoke(ref ActivityCreationOptions options, AsyncCallback callback, object object)

public virtual ActivitySamplingResult EndInvoke(ref ActivityCreationOptions options, IAsyncResult result)

public virtual ActivitySamplingResult Invoke(ref ActivityCreationOptions options)