use "fmt.cat" use lib "directory/long_library_name" fmt.printf "%d + %d = %d File length: %d" a b a + b (io.file_size "file.txt") fmt.println "Hello world!" let a := 123 let uninitialized : u32 let multiple variables here : u32 = 1 2 3 let string : str, number : i32 if a == 1 { lol } elif b == 2 { kek } else { aaaaaaa }