selection(){return this.selection_;},set selection(selection){this.selection_=selection;},createColumns_(stats){const columns=[{title:'Title',value(row){const titleEl=document.createElement('span');Polymer.dom(titleEl).textContent=row.title;titleEl.style.textOverflow='ellipsis';return titleEl;},cmp(a,b){return a.title.localeCompare(b.title);},width:'400px'},{title:'Num Events',align:tr.ui.b.TableFormat.ColumnAlignment.RIGHT,value(row){return row.rowStats.numEvents;},cmp(a,b){return a.rowStats.numEvents-b.r...