nl_tokens: Begins visual transfer or renderables from the previous item to the new item .
pl_tokens: function _initTransferableAnimations ( item , prevItem , callback ) { var callbackCount = 0 ; function waitForAll ( ) { callbackCount -- ; if ( callbackCount === 0 ) { <mask> ( ) ; } } for ( var sourceId in item . options . transfer . items ) { if ( _initTransferableAnimation . call ( this , item , prevItem , sourceId , waitForAll ) ) { callbackCount ++ ; } } if ( ! callbackCount ) { callback ( ) ; } }