class EthProtocolVersion implements JsonRpcMethod {

  @Override
  public JsonRpcResponse response(final JsonRpcRequestContext requestContext) {
    return new JsonRpcSuccessResponse(
        requestContext.getRequest().getId(),
        highestEthVersion == null ? null : Quantity.create(highestEthVersion));
  }

  public  EthProtocolVersion(final Set<Capability> supportedCapabilities);

}