pub trait SubmitApi {
type Transaction: DeserializeOwned + Send + Sync + 'static;
type TxHash: Serialize + Send + Sync + 'static;
// Required method
fn submit<'life0, 'async_trait>(
&'life0 self,
tx: Self::Transaction,
) -> Pin<Box<dyn Future<Output = Result<Self::TxHash>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
}