code: public Request<ResourceServer> create(ResourceServer resourceServer) {
          Asserts.assertNotNull(resourceServer, "Resource server");
  
          HttpUrl.Builder builder = baseUrl
                  .newBuilder()
                  .addPathSegments("api/v2/resource-servers");
  
          String url = builder.build().toString();
          CustomRequest<ResourceServer> request = new CustomRequest<>(client, url, "POST",
                  new TypeReference<ResourceServer>() {
                  });
          request.addHeader("Authorization", "Bearer " + apiToken);
          request.setBody(resourceServer);
          return request;
      }
docs: Cretes request for creation resource server
  See <a href=https://auth0.com/docs/api/management/v2#!/Resource_Servers/post_resource_servers>API documentation</a>
  
  @param resourceServer resource server body
  @return request to execute