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## smallest
### Instructions
Create a function named `smallest` that gets the smallest number in the `HashMap`.
### Expected Function
```rust
pub fn smallest(h: HashMap<&str, i32>) -> i32 {
}
```
### Usage
Here is a program to test your function.
```rust
use std::collections::HashMap;
use smallest::smallest;
fn main() {
let mut hash = HashMap::new();
hash.insert("Cat", 122);
hash.insert("Dog", 333);
hash.insert("Elephant", 334);
hash.insert("Gorilla", 14);
println!("The smallest of the elements in the HashMap is {}", smallest(hash));
}
```
And its output
```console
$ cargo run
The smallest of the elements in the HashMap is 14
$
```
### Notions
- [hash maps](https://doc.rust-lang.org/book/ch08-03-hash-maps.html)