add some formatting shit

src/helpers/format.rs

@@ -0,0 +1,16 @@
+use std::collections::HashMap;
+
+pub fn format(map: HashMap<i32, impl ToString>) -> String {
+    let mut result = String::new();
+
+    for (k, v) in map {
+        result.push_str(&format!("{}:{}", k, v.to_string()));
+        result.push(':');
+    }
+
+    if !result.is_empty() {
+        result.pop();
+    }
+
+    return result;
+}