code: function(fm, extraObj) {
  								// `init` event callback function
  								fm.bind('init', function() {
  									// Optional for Japanese decoder "encoding-japanese"
  									if (fm.lang === 'ja') {
  										require(
  											[ 'encoding-japanese' ],
  											function(Encoding) {
  												if (Encoding && Encoding.convert) {
  													fm.registRawStringDecoder(function(s) {
  														return Encoding.convert(s, {to:'UNICODE',type:'string'});
  													});
  												}
  											}
  										);
  									}
  								});
  							}
docs: 2nd Arg - before boot up function