nl_tokens: Serialize has - may relationship when it is configured as embedded objects .
pl_tokens: function ( record , json , relationship ) { var key = relationship . key , attrs = get ( this , 'attrs' ) , embed = attrs && attrs [ key ] && attrs [ key ] . embedded === 'always' ; if ( embed ) { json [ this . keyForAttribute ( key ) ] = <mask> ( record , key ) . map ( function ( relation ) { var data = relation . serialize ( ) , primaryKey = get ( this , 'primaryKey' ) ; data [ primaryKey ] = get ( relation , primaryKey ) ; return data ; } , this ) ; } }