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pub const DIGITS: &str = "0123456789"; pub const LETTERS: &str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_"; pub const LETTERS_DIGITS: &str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_"; pub const KEYWORDS: &[&str] = &[ "obj", "stay", "and", "or", "not", "if", "alsoif", "otherwise", "walk", "through", "step", "while", "unsafe", "safe", "func", "fetch", "give", "next", "leave", ];