pub trait Backward {
fn get_backward_transient<K: AsRef<str>>(
&self,
key: K
) -> Option<Cow<'static, str>>;
fn get_backward_downstream<K: AsRef<str>>(
&self,
key: K
) -> Option<Cow<'static, str>>;
fn get_all_transients(&self) -> Option<&Vec<Arc<KV>>>;
fn get_all_downstreams(&self) -> Option<&Vec<Arc<KV>>>;
fn set_backward_transient<K: Into<Cow<'static, str>>, V: Into<Cow<'static, str>>>(
&mut self,
key: K,
value: V
);
fn set_backward_downstream<K: Into<Cow<'static, str>>, V: Into<Cow<'static, str>>>(
&mut self,
key: K,
value: V
);
fn strip_rpc_prefix_and_set_downstream<K: Into<Cow<'static, str>>, V: Into<Cow<'static, str>>>(
&mut self,
key: K,
value: V
);
fn strip_http_prefix_and_set_downstream<K: Into<Cow<'static, str>>, V: Into<Cow<'static, str>>>(
&mut self,
key: K,
value: V
);
fn del_backward_transient<K: AsRef<str>>(&mut self, key: K);
fn del_backward_downstream<K: AsRef<str>>(&mut self, key: K);
}