in src/Amazon.Extensions.Configuration.SystemsManager/Internal/ServiceClientAppender.cs [27:36]
        public static void ServiceClientBeforeRequestEvent(object sender, RequestEventArgs e)
        {
            if (e is WebServiceRequestEventArgs args)
            {
                if (args.Headers.ContainsKey(UserAgentHeader))
                {
                    args.Headers[UserAgentHeader] = args.Headers[UserAgentHeader] + " SSMConfigProvider/" + AssemblyVersion;
                }
            }
        }