Trait Watching 

pub(super) trait Watching: Send {
    // Required method
    fn seen(&self) -> Option<bool>;
}

The session’s own do-not-disturb, followed.

Required Methods

fn seen(&self) -> Option<bool>

What was last read: on, off; none before it could be.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Watching for Watch

Available on Unix and neither Android nor macOS only.

fn seen(&self) -> Option<bool>

Implementors

impl Watching for GnomeWatch

Available on Unix and neither Android nor macOS only.