// For ICQ New/Agent: create bot with token received from Metabot
BotApiClient client = new BotApiClient(token);
// For Myteam: create bot with token from Metabot and host url (for example `https://myteam.mail.ru/`)
BotApiClient client = new BotApiClient(apiBaseUrl, token);

BotApiClientController controller = BotApiClientController.startBot(client);
client.addOnEventFetchListener(events -> { 
    //subscribe to new events
});

// send actions
controller.sendActions(chatId, ChatAction.TYPING);

// send message
long messageId = controller.sendTextMessage(
    new SendTextRequest()
        .setChatId(chatId)
        .setText("Bot message")
).getMsgId();

// edit message
controller.editText(
    new EditTextRequest()
        .setChatId(chatId)
        .setMsgId(messageId)
        .setNewText("Edited bot message")
);  

// reply message
controller.sendTextMessage(
    new SendTextRequest()
        .setChatId(chatId)
        .setText("Reply msg")
        .setReplyMsgId(Collections.singletonList(messageId))
);

File file = new File("myfile.txt");
// send file
controller.sendFile(
    new SendFileRequest()
        .setChatId(chatId)
        .setFile(file)
);

// reply file
MessageResponse sendFileResponse = controller.sendFile(
    new SendFileRequest()
        .setChatId(chatId)
        .setFile(file)
        .setCaption("Awesome file")
        .setReplyMsgId(Collections.singletonList(messageId))
);
if (!sendFileResponse.isOk()) { // sent successfully or not
    // and get the error description if sending failed
    String errorDescription = sendFileResponse.getDescription();
}

client.stop(); // stop when work done