This crate is no longer maintained and its Telegram Bot API definitions are outdated. For new projects, consider using one of these actively maintained alternatives:
frankensteinif you need Telegram Bot API types or a low-level API client. With no client feature enabled, it can also be used primarily as a types crate.teloxideif you need a complete framework for building Telegram bots.
Types in the Telegram Bot API and their deserializers
See also Telegram Bot API and changelog.