Maintainer: ‘Sen Zhao <sen-zhao@sen-zhao.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Sen",
                    family = "Zhao",
                    role = c("aut", "cre"),
                    email = "sen-zhao@sen-zhao.com")
as necessary.
Maintainer: ‘Sen Zhao <sen-zhao@sen-zhao.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Sen",
                    family = "Zhao",
                    role = c("aut", "cre"),
                    email = "sen-zhao@sen-zhao.com")
as necessary.