template
template: string = `<div class="rxc-block"><div class="rxc-head"><span class="rxc-head__title" (click)="onToggle()"><span *if="!active">+ json </span><span *if="active">- json </span><span [innerHTML]="item"></span></span></div><ul class="rxc-list" *if="active"><li class="rxc-list__item"><span class="rxc-list__value" [innerHTML]="item | json"></span></li></ul></div>`