http_constant/constant/
http_version.rs

1pub static HTTP_VERSION_0_9: &str = "HTTP/0.9";
2pub static HTTP_VERSION_1_0: &str = "HTTP/1.0";
3pub static HTTP_VERSION_1_1: &str = "HTTP/1.1";
4pub static HTTP_VERSION_2: &str = "HTTP/2";
5pub static HTTP_VERSION_3: &str = "HTTP/3";