@Override
  public Collection<Address> getValidatorsForBlock(final QbftBlockHeader header) {
    return validatorProvider.getValidatorsForBlock(BlockUtil.toBesuBlockHeader(header));
  }
Create a new instance of the adaptor.

@param validatorProvider the {@link ValidatorProvider} to adapt.
consensus/qbft/src/main/java/org/hyperledger/besu/consensus/qbft/adaptor/QbftValidatorProviderAdaptor.java