remove Default on Transport
@@ -29,7 +29,7 @@ pub trait TransportOptions {
/// Parametrized by the type of message links.
/// Message link is used to identify/locate a message (eg. like URL for HTTP).
#[async_trait(?Send)]
-pub trait Transport<Link, Msg>: TransportOptions + TransportDetails<Link> + Default {
+pub trait Transport<Link, Msg>: TransportOptions + TransportDetails<Link> {
/// Send a message with default options.
async fn send_message(&mut self, msg: &Msg) -> Result<()>;
