Todo

Remove SpringContext object.

Add webhook.

Add post process after send messages (and after receive messages).

Add mini DI to config initialization.

Save users like messages.

Add more tests.

Complete documentation in code (classes and methods).

Add to documentation info about currentContainerContext(), InputFactory.

Add validation to command(), step(), callback() at initialization.

Create custom @ConditionalOnMissingBean for source-jpa io.github.dehuckakpyt.telegrambot.config.

Add ConfigExpression for all interfaces in TelegramBotConfig (at least for Spring).

Figure out how to send messages longer than 4096 characters.

Figure out how to implement internationalization.

Add ability to specify action ('typing...', etc.).