Macro slog::b

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

Macro for building group of key-value pairs in BorrowedKV

In most circumstances using this macro directly is unecessary and info! and other wrappers over log! should be used instead.