code: public <BE extends EntityType, BT extends TokenType> InputStream makeRequest(
          final TokenProxy<BE, BT> tokenProxy,
          final BackendCaller<? super BE, ? super BT> backendCaller
      ) throws HodErrorException {
          return responseParser.parseResponse(tokenProxy, backendCaller.makeRequest(getAuthenticationToken(tokenProxy)));
      }
docs: Makes a request to HP Haven OnDemand, returning the response body as an input stream.
  @param tokenProxy The token proxy to use to make the request
  @param backendCaller Makes the request to HP Haven OnDemand
  @param <BE> The entity type of the token proxy
  @param <BT> The token type of the token proxy
  @return The response body
  @throws HodErrorException