<PackageReference Include="NETStandard.Library" Version="2.0.0" />

System.Net.Security.LocalCertificateSelectionCallback

public sealed delegate LocalCertificateSelectionCallback : MulticastDelegate
public LocalCertificateSelectionCallback(object object, IntPtr method)

public virtual IAsyncResult BeginInvoke(object sender, string targetHost, X509CertificateCollection localCertificates, X509Certificate remoteCertificate, string[] acceptableIssuers, AsyncCallback callback, object object)

public virtual X509Certificate EndInvoke(IAsyncResult result)

public virtual X509Certificate Invoke(object sender, string targetHost, X509CertificateCollection localCertificates, X509Certificate remoteCertificate, string[] acceptableIssuers)