Macro slog::slog_o

macro_rules! slog_o {
    (@ $args_ready:expr; $k:expr => $v:expr) => { ... };
    (@ $args_ready:expr; $k:expr => $v:expr, $($args:tt)* ) => { ... };
    (@ $args_ready:expr; ) => { ... };
    (@ $args_ready:expr;, ) => { ... };
    ($($args:tt)*) => { ... };
}

Macro for building group of key-value pairs (alias)

Use in case of macro name collisions