#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]

    fn try_from(value: Constant) -> Result<Self, Self::Error> {

        match value {

            Constant::Int(i) => Ok(i),

            _ => Err("Cannot convert non-i32 Constant to i32"),

    }

    fn try_from(value: Constant) -> Result<Self, Self::Error> {

        match value {

            Constant::Bool(b) => Ok(b),

            _ => Err("Cannot convert non-bool Constant to bool"),

    }

    fn from(i: i32) -> Self {

        Constant::Int(i)

    }

    fn from(b: bool) -> Self {

        Constant::Bool(b)

    }

    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {

        match &self {

            Constant::Int(i) => write!(f, "Int({})", i),

            Constant::Bool(b) => write!(f, "Bool({})", b),

    }