function skipDefaultParamValue(node) {
  if (!node) {
    return node
  }
  // @ts-expect-error
  if (node.type === 'AssignmentPattern') {
    // @ts-expect-error
    return skipDefaultParamValue(node.left)
  }
  // @ts-expect-error
  return node
}
Retrieve `AssignmentPattern#left` value if the given node a `AssignmentPattern` node. Otherwise, pass through it.
@template T Node type
@param {T | AssignmentPattern} node The node to address.
@return {T} The `AssignmentPattern#left` value if the node is a `AssignmentPattern` node. Otherwise, the node.