Bytes getRawHeader() {
    final BytesValueRLPOutput rlpOutput = new BytesValueRLPOutput();
    header.writeTo(rlpOutput);
    return rlpOutput.encoded();
  }
Returns the raw header of the current block.

@return the raw header of the block
ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/graphql/internal/pojoadapter/BlockAdapterBase.java