private CommunicationRelayClient(string endpoint, AzureKeyCredential keyCredential, CommunicationRelayClientOptions options)
     : this(endpoint, options.BuildHttpPipeline(keyCredential), options)
 {
 }
 private CommunicationRelayClient(string endpoint, TokenCredential tokenCredential, CommunicationRelayClientOptions options)
     : this(endpoint, options.BuildHttpPipeline(tokenCredential), options)
 {
 }
 private CommunicationRelayClient(ConnectionString connectionString, CommunicationRelayClientOptions options)
     : this(connectionString.GetRequired("endpoint"), options.BuildHttpPipeline(connectionString), options)
 {
 }