public EVMExecutor mixHash(final Bytes32 mixHash) {
    ((SimpleBlockValues) this.blockValues).setMixHashOrPrevRandao(mixHash);
    return this;
  }
Sets the mix hash bytes on a SimpleBlockValues object

@param mixHash the mix hash
@return the evm executor
@throws ClassCastException if the blockValues was set with a value that is not a {@link
    SimpleBlockValues}
evm/src/main/java/org/hyperledger/besu/evm/fluent/EVMExecutor.java