Maintainer: ‘JungJun Lee <ljjoj@korea.ac.kr>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "JungJun",
                      family = "Lee",
                      role = c("aut", "cre"),
                      email = "ljjoj@korea.ac.kr"),
               person(given = "Jae-Hwan",
                      family = "Jhong",
                      role = "aut"),
               person(given = "Young-Rae",
                      family = "Cho",
                      role = "aut"),
               person(given = "SungHwan",
                      family = "Kim",
                      role = "aut"),
               person(given = "Ja-yong",
                      family = "Koo",
                      role = "aut"))
as necessary.
Maintainer: ‘JungJun Lee <ljjoj@korea.ac.kr>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "JungJun",
                      family = "Lee",
                      role = c("aut", "cre"),
                      email = "ljjoj@korea.ac.kr"),
               person(given = "Jae-Hwan",
                      family = "Jhong",
                      role = "aut"),
               person(given = "Young-Rae",
                      family = "Cho",
                      role = "aut"),
               person(given = "SungHwan",
                      family = "Kim",
                      role = "aut"),
               person(given = "Ja-yong",
                      family = "Koo",
                      role = "aut"))
as necessary.