Maintainer: ‘Jing Zhang<zj391120@163.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Jing",
                      family = "Zhang",
                      role = c("aut", "cre"),
                      email = "zj391120@163.com"),
               person(given = "Zhi",
                      family = "Jin",
                      role = "aut"))
as necessary.
Maintainer: ‘Jing Zhang<zj391120@163.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Jing",
                      family = "Zhang",
                      role = c("aut", "cre"),
                      email = "zj391120@163.com"),
               person(given = "Zhi",
                      family = "Jin",
                      role = "aut"))
as necessary.