code: public static int getUnreadMessageCount() {
  		try {
  			if (ApptentiveInternal.isApptentiveRegistered()) {
  				ConversationProxy conversationProxy = ApptentiveInternal.getInstance().getConversationProxy();
  				return conversationProxy != null ? conversationProxy.getUnreadMessageCount() : 0;
  			}
  		} catch (Exception e) {
  			ApptentiveLog.e(MESSAGES, e, "Exception while getting unread message count");
  			logException(e);
  		}
  		return 0;
  	}
docs: Returns the number of unread messages in the Message Center.
  
  @return The number of unread messages.