gistfile1.xml

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
	<configSections>
	</configSections>
	<appSettings>
		<add key="AccessToken" value="" />
		<add key="AccessTokenSecret" value="" />
		<add key="RequestToken" value="" />
	</appSettings>
</configuration>

gistfile2.cs

	class TwitterSettings
	{
		public string AccessToken { get; set; }
		public string AccessTokenSecret { get; set; }
		public string RequestToken { get; set; }

		public TwitterSettings()
		{
			AccessToken = ConfigurationManager.AppSettings["AccessToken"];
			AccessTokenSecret = ConfigurationManager.AppSettings["AccessTokenSecret"];
			RequestToken = ConfigurationManager.AppSettings["RequestToken"];
		}
	}