public let SENTENCE_PUNCTUATION_MARKS: Set = [".", "!", "?"]

let POSTBACK_GET_STARTED = "POSTBACK_GET_STARTED"
let POSTBACK_UNSUBSCRIBE_RESUBSCRIBE = "POSTBACK_UNSUBSCRIBE_RESUBSCRIBE"
let POSTBACK_BOT_COUNT_ME_IN = "POSTBACK_BOT_COUNT_ME_IN"

let QUICK_REPLY_GIVEAWAYS_OPT_IN = "QUICK_REPLY_GIVEAWAYS_OPT_IN"
