code: public static CompletableFuture<MessageSet> getMessagesAfter(TextChannel channel, int limit, long after) {
          return getMessages(channel, limit, -1, after);
      }
docs: Gets up to a given amount of messages in the given channel after a given message in any channel.
  
  @param channel The channel of the messages.
  @param limit The limit of messages to get.
  @param after Get messages after the message with this id.
  @return The messages.
  @see #getMessagesAfterAsStream(TextChannel, long)