pub fn dummy_opaque_bundle<Number: Encode, Hash: Default + Encode, DomainHeader: HeaderT, Balance: Encode>(
domain_id: DomainId,
operator_id: OperatorId,
receipt: ExecutionReceipt<Number, Hash, HeaderNumberFor<DomainHeader>, HeaderHashFor<DomainHeader>, Balance>,
) -> OpaqueBundle<Number, Hash, DomainHeader, Balance>