pub type OpeningError<SC> = <<SC as StarkGenericConfig>::Pcs as Pcs<<SC as StarkGenericConfig>::Challenge, <SC as StarkGenericConfig>::Challenger>>::Error;pub type OpeningError<SC> = <<SC as StarkGenericConfig>::Pcs as Pcs<<SC as StarkGenericConfig>::Challenge, <SC as StarkGenericConfig>::Challenger>>::Error;