Macro slog::o

macro_rules! o {
    (@ $k:expr => $v:expr, $($args:tt)+) => { ... };
    (@ $k:expr => $v:expr) => { ... };
    (@ $k:expr => $v:expr,) => { ... };
    () => { ... };
    ($($args:tt)+) => { ... };
}

Convenience macro for building SyncMultiSerialize trait object

#[macro_use]
extern crate slog;

fn main() {
    let drain = slog::Discard;
    let root = slog::Logger::root(drain, o!("key1" => "value1", "key2" => "value2"));
}