About the Telegram Bot

This Bot uses the Updater class to handle the bot. First, a few callback functions are defined. Then, those functions are passed to the Dispatcher and registered at their respective places. Then, the bot is started and runs until we press Ctrl-C on the command line. Usage: Example of a bot-user conversation using ConversationHandler. Send /start to initiate the conversation. Press Ctrl-C on the command line or send a signal to the process to stop the bot.