Macro prometheus::labels [−][src]
Create labels with specified name-value pairs.
Examples
let labels = labels!{ "test" => "hello", "foo" => "bar", }; assert_eq!(labels.len(), 2); assert!(labels.get("test").is_some()); assert_eq!(*(labels.get("test").unwrap()), "hello"); let labels: HashMap<&str, &str> = labels!{}; assert!(labels.is_empty());