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pub mod wood_box {
    //! # Wood Box
    //!
    //! `wood_box` is a collection of utilities to make performing certain
    //! calculations more convenient.

    /// Adds one to the number given.
    /// # Examples
    /// ```
    /// let arg = 5;
    /// let answer = wood_box::add_one(arg);
    ///
    /// assert_eq!(6, answer);
    /// ```
    ///
    /// # Panics
    /// It never panics
    ///
    /// # Errors
    /// Does not return Result type
    ///
    /// # Safety
    /// Has no unsafe code
    pub fn add_one(x: i32) -> i32 {
        x + 1
    }
}


pub mod art {
    //! # Art
    //! 
    //! A library for modeling artistic concepts.

    pub use self::kinds::PrimaryColor;
    pub use self::kinds::SecondaryColor;
    pub use self::utils::mix;
    
    pub mod kinds {
        /// The primary colors according to the RYB color model.
        pub enum PrimaryColor {
            Red,
            Yellow,
            Blue,
        }

        /// The secondary colors according to the RYB color model.
        pub enum SecondaryColor {
            Orange,
            Green,
            Purple,
        }
    }

    pub mod utils {
        use super::kinds::{PrimaryColor, SecondaryColor};

        
        pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor {
            unimplemented!();
        }
    }
}