Vue.component('tt-card', {
    //language=Vue
    template: `
      <div class="card">
        <div class="card-header" v-if="$slots.header">
          <slot name="header"></slot>
        </div>
        <div class="card-body">
          <slot></slot>
        </div>
        <div class="card-footer" v-if="$slots.footer">
          <slot name="footer"></slot>
        </div>
      </div>
    `,
})