prevSibling(node) {
    let prevElement = null

    for (const siblingNode of (node.parent && node.parent.children) || []) {
      if (siblingNode === node) {
        return prevElement
      }
      if (siblingNode.type === 'VElement') {
        prevElement = siblingNode
      }
    }

    return null
  }
Get the previous sibling element of the given element.
@param {VElement} node The element node to get the previous sibling element.
@returns {VElement|null} The previous sibling element.