@Override
  public UInt256 getOriginalStorageValue(final UInt256 key) {
    if (parent != null) {
      return parent.getStorageValue(key);
    } else {
      return UInt256.ZERO;
    }
  }
Instantiates a new Simple account.

@param parent the parent
@param address the address
@param nonce the nonce
@param balance the balance
@param code the code
evm/src/main/java/org/hyperledger/besu/evm/fluent/SimpleAccount.java