How to create a HashMap literal in Rust?

Hi! I just started learning Rust and I have a problem. I'm used to writing dictionaries in Python in one line: `my_dict = {"key": "value"}`. In JavaScript it's also simple: `let obj = {key: "value"}`. But in Rust I can't find a way to create a HashMap literally. I'm trying to do something like this: ```rust use std::collections::HashMap; fn main() { // My failing code let mut map = HashMap::new(); map.insert("key1", "value1"); map.insert("key2", "value2"); } ``` This works, but it's very verbose. In Python I would write `{"key1": "value1", "key2": "value2"}`. How to do the same in Rust? Is there some macro or syntactic sugar? I read the documentation but only found `HashMap::new()` and `insert()`. Maybe there is some way to use `vec