Strongly typed HTTP Header library for Rust, built upon serde
```rust
use serde_header::from_http_header_map;
struct Example {
}
// let mut h = http::header::HeaderMap::new();
// h.insert("content_length", "100".parse().unwrap());
// h.insert("content_type", "application/json".parse().unwrap());
let t: Example = from_http_header_map(&h).unwrap();
println!("{:?}", &t)
```