pub trait HeaderMap: Send + Sync {
// Required methods
fn keys(&self) -> Vec<&str>;
fn len(&self) -> usize;
fn contains_key(&self, key: &str) -> bool;
fn get(&self, key: &str) -> Option<&str>;
}pub trait HeaderMap: Send + Sync {
// Required methods
fn keys(&self) -> Vec<&str>;
fn len(&self) -> usize;
fn contains_key(&self, key: &str) -> bool;
fn get(&self, key: &str) -> Option<&str>;
}