https://learn.microsoft.com/ja-jp/dotnet/api/microsoft.azure.relay.hybridconnectionlistener.-ctor?view=azure-dotnet
HybridConnectionListener Constructor (Microsoft.Azure.Relay) - Azure for .NET Developers |...
Creates a new instance of HybridConnectionListener using the specified connection string. Use this overload only when AAD is not the method of authentication.
microsoft azureconstructorrelaydevelopers