trait ValueForKeyInLinkHeader {
// Required methods
fn has_key_in_link_header(&self, key: &str) -> bool;
fn value_for_key_in_link_header(&self, key: &str) -> Option<&str>;
}
trait ValueForKeyInLinkHeader {
// Required methods
fn has_key_in_link_header(&self, key: &str) -> bool;
fn value_for_key_in_link_header(&self, key: &str) -> Option<&str>;
}