code: function downloadLanguage (language, callback)
  	{
  		grunt.log.writeln ('Fetching ' + language.url);
  		getJSON (getHttpParameters (language.token), function (data) {
  			grunt.file.write (options.dest + '/' + language.token + '.json', JSON.stringify (data));
  			callback ();
  		});
  	}
docs: Please see the Grunt documentation for more information regarding task creation: http://gruntjs.com/creating-tasks