docs: @BetaApi
    public final TargetHttpProxy getTargetHttpProxy(
        ProjectGlobalTargetHttpProxyName targetHttpProxy) {
  
      GetTargetHttpProxyHttpRequest request =
          GetTargetHttpProxyHttpRequest.newBuilder()
              .setTargetHttpProxy(targetHttpProxy == null ? null : targetHttpProxy.toString())
              .build();
      return getTargetHttpProxy(request);
    }