<PackageReference Include="System.Diagnostics.DiagnosticSource" Version="9.0.1" />

AggregatorLookupFunc<TAggregator>

sealed delegate AggregatorLookupFunc<TAggregator> : MulticastDelegate
public AggregatorLookupFunc(object object, IntPtr method)

public virtual IAsyncResult BeginInvoke(ReadOnlySpan<KeyValuePair<string, object>> labels, out TAggregator aggregator, AsyncCallback callback, object object)

public virtual bool EndInvoke(out TAggregator aggregator, IAsyncResult result)

public virtual bool Invoke(ReadOnlySpan<KeyValuePair<string, object>> labels, out TAggregator aggregator)