pub trait TxToStep<Env, RH> {
type Step;
// Required method
fn tx_to_step(self) -> StepWrapper<Env, Self::Step, RH>;
}
pub trait TxToStep<Env, RH> {
type Step;
// Required method
fn tx_to_step(self) -> StepWrapper<Env, Self::Step, RH>;
}