macro_rules! metrics_histogram_vec { ($vis:vis $name:ident: $vecty:ident($($labels:ident: $labelty:ty),+ $(,)?) ($($bucket:literal)*)) => { ... }; }
macro_rules! metrics_histogram_vec { ($vis:vis $name:ident: $vecty:ident($($labels:ident: $labelty:ty),+ $(,)?) ($($bucket:literal)*)) => { ... }; }