pub trait TxPromisesCallback<Api>: TxResultHandler<TxScEnv<Api>>where
Api: CallTypeApi,{
// Required methods
fn callback_name(&self) -> &'static str;
fn overwrite_with_serialized_args(
&self,
cb_closure_args_serialized: &mut ManagedBuffer<Api>,
);
fn gas_for_callback(&self) -> u64;
}