What font is Mi Fei's calligraphy work An Chuzhai?

Cursive Mi Fei (105 1 year-1 107), formerly known as Kun, later changed to Fu, with the word "meter", lived in Taiyuan, moved to Xiangyang, Hubei, and lived in Runzhou (today). Mi Fei's calligraphy "An Chu Zhai Tu" was a cursive master, calligrapher, painter and painting theorist in the Northern Song Dynasty, and was also called "Song Sijia" with Cai Xiang, Su Shi and Huang Tingjian. He used to be a school book lang, a doctor of calligraphy and painting, and a foreign minister of the Ministry of Rites.