There is a book that Qin Shihuang saw aliens. Is it true?/You don't say. What is the basis?

There is such a book, Wang Jia's Notes Collection, most of which is about fairy tales. Among them, Qin Shihuang met Wanqu people from Wanqu country. Their vehicles are similar to UFOs and aliens. They know more about the earth than modern scientists, and they are also insightful about the history of China. I care about Shao Dian's son's collection of bronze casting ding. I also accompanied Qin Shihuang to visit the Great Wall. I think this matter is extremely unreliable. First of all, no orthodox history books have been written, and most of the stories in the Book of Picking Up are fairy tales. Most of nature is fiction, but scientists believe that people in Wanqu are similar to modern aliens.