Maintainer: ‘Xin Xu <xin.xu@yale.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Hanzhong",
                      family = "Liu",
                      role = "aut"),
               person(given = "Xin",
                      family = "Xu",
                      role = c("aut", "cre"),
                      email = "xin.xu@yale.edu"),
               person(given = c("Jingyi", "Jessica"),
                      family = "Li",
                      role = "aut"))
as necessary.
Maintainer: ‘Xin Xu <xin.xu@yale.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Hanzhong",
                      family = "Liu",
                      role = "aut"),
               person(given = "Xin",
                      family = "Xu",
                      role = c("aut", "cre"),
                      email = "xin.xu@yale.edu"),
               person(given = c("Jingyi", "Jessica"),
                      family = "Li",
                      role = "aut"))
as necessary.