Added missing

string aadToken = browserToken.Token;

Author: alexeyo26

articles/cognitive-services/Speech-Service/how-to-configure-azure-ad-auth.md

@@ -51,6 +51,7 @@ Here's an example of using Azure Identity to get an Azure AD access token from a
 TokenRequestContext context = new Azure.Core.TokenRequestContext(new string[] { "https://cognitiveservices.azure.com/.default" });
 InteractiveBrowserCredential browserCredential = new InteractiveBrowserCredential();
 var browserToken = browserCredential.GetToken(context);
+string aadToken = browserToken.Token;
 ```
 The token context must be set to "https://cognitiveservices.azure.com/.default".
 ::: zone-end