static make(labeledElement, content) {
    tippy(labeledElement, {
      content,
      placement: 'bottom',
      arrow: true,
      animation: 'scale',
      size: 'large',
    });
    // TODO: The tooltip should be unreadable by screen readers, and this
    // tooltip info should instead be encoded into the object.
  }
@param {!Element} labeledElement
@param {string} content