Maintainer: ‘Seunggeun (Shawn) Lee <leeshawn@umich.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Seunggeun",
                      family = "Lee",
                      role = "aut",
                      comment = "Shawn"),
               person(given = "Seunggeun",
                      family = "Lee",
                      role = "cre",
                      email = "leeshawn@umich.edu",
                      comment = "Shawn"))
as necessary.
Maintainer: ‘Seunggeun (Shawn) Lee <leeshawn@umich.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Seunggeun",
                      family = "Lee",
                      role = "aut",
                      comment = "Shawn"),
               person(given = "Seunggeun",
                      family = "Lee",
                      role = "cre",
                      email = "leeshawn@umich.edu",
                      comment = "Shawn"))
as necessary.