use gpui_shared_string::SharedString; #[derive(Clone)]pub struct EnvVar {    pub name: SharedString,    /// Value of the environment variable. Also `None` when set to an empty string.    pub value: Option<String>,} impl EnvVar {    pub fn new(name: SharedString) -> Self {        let value = std::env::var(name.as_str()).ok();        if value.as_ref().is_some_and(|v| v.is_empty()) {            Self { name, value: None }        } else {            Self { name, value }        }    }     pub fn or(self, other: EnvVar) -> EnvVar {        if self.value.is_some() { self } else { other }    }} /// Creates a `LazyLock<EnvVar>` expression for use in a `static` declaration.#[macro_export]macro_rules! env_var {    ($name:expr) => {        ::std::sync::LazyLock::new(|| $crate::EnvVar::new(($name).into()))    };} /// Generates a `LazyLock<bool>` expression for use in a `static` declaration. Checks if the/// environment variable exists and is non-empty.#[macro_export]macro_rules! bool_env_var {    ($name:expr) => {        ::std::sync::LazyLock::new(|| $crate::EnvVar::new(($name).into()).value.is_some())    };}