code: function _getToken( /*klass, klass1, klass2*/ ) {
  
            if ( !tokens ) {
              throw new Error( 'no tokens found' );
            }
  
            var _args = [ ].slice.call( arguments ).join( ' ' ).split( ' ' );
  
            var _result = _args.map( function ( klass ) {
  
              var token = tokens[ klass ];
              if ( !token ) {
                throw new Error( 'no token found for ' + klass );
              }
              return token;
            } ).join( ' ' );
  
            return _result;
          }
docs: be careful here, this function is defined like this for ease of use, but this is going to actually be serialized inside the output of the transform so tokens inside this function, refer to the tokens variable declared in the transformed code