SlackClient client = new SlackClient(slackApi);
    String scopes = "channels:history channels:read channels:write chat:write:bot chat:write:user "
        + "dnd:read dnd:write emoji:read files:read files:write:user groups:history groups:read "
        + "groups:write im:history im:read im:write mpim:history mpim:read mpim:write pins:read "

 * points</a> in the range {@code 0x10000} to {@code 0x10FFFF} which includes the majority of
 * assigned characters, including important CJK characters and emoji.
 *
 * <p>Supplementary characters are <a
 * href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#supplementary">encoded

 * points</a> in the range {@code 0x10000} to {@code 0x10FFFF} which includes the majority of
 * assigned characters, including important CJK characters and emoji.
 *
 * <p>Supplementary characters are <a
 * href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#supplementary">encoded