in src/AWSMSKAuthTokenGenerator.cs [109:116]
public async Task<(string, long)> GenerateAuthTokenAsync(RegionEndpoint region, bool awsDebugCreds = false)
{
AWSCredentials credentials = FallbackCredentialsFactory.GetCredentials();
await LogCredentialsIdentity(credentials, region, awsDebugCreds);
return await GenerateAuthTokenFromCredentialsProvider(() => credentials, region);
}