to add.
        @type password: C{str}

        @param uid: The value for the C{pw_uid} field of the user record to
            add.
        @type uid: C{int}

        @param gid: The value for the C{pw_gid} field of the user record to
            add.
        @type gid: C{int}

        @param gecos: The value for the C{pw_gecos} field of the user record
            to add.
        @type gecos: C{str}

        @param home: The value for the C{pw_dir} field of the user record to
            add.
        @type home: C{str}

        @param shell: The value for the C{pw_shell} field of the user record to
            add.
        @type shell: C{str}
        N)