thirtyfour 0.37.0

Thirtyfour is a Selenium / WebDriver library for Rust, for automated website UI testing. Tested on Chrome and Firefox, but any webdriver-capable browser should work.
Documentation 
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/// Code for starting a new session.
pub mod create;
/// The underlying session handle.
pub mod handle;
/// HTTP helpers for WebDriver commands.
pub mod http;
/// Helper for values returned from scripts.
pub mod scriptret;

/// Marker trait for an opaque value whose `Drop` impl tears down some external
/// resource that a [`SessionHandle`] depends on (e.g. a locally-spawned
/// `chromedriver` subprocess managed by [`crate::manager::WebDriverManager`]).
///
/// Implementations are stored on the session handle inside an
/// `Option<Arc<dyn DriverGuard>>` and are dropped *after* the session has been
/// quit, so any external resources outlive the `DELETE /session` HTTP call.
///
/// [`SessionHandle`]: handle::SessionHandle
pub trait DriverGuard: Send + Sync + std::fmt::Debug + 'static {
    /// Downcast helper used by [`crate::WebDriver::driver_id`] and friends to
    /// reach concrete guard types (e.g. the manager's `SessionGuard`). Default
    /// returns a placeholder; types with no useful runtime info don't need to
    /// override.
    fn as_any(&self) -> &dyn std::any::Any {
        &()
    }
}