ResponseListGraphType.cs

  public class ResponseListGraphType<TGraphType> : ObjectGraphType<Response> where TGraphType : GraphType
  {
      public ResponseListGraphType()
      {
          Name = $"ResponseList{typeof(TGraphType).Name}";

          Field(x => x.StatusCode, nullable: true).Description("Status code of the request.");
          Field(x => x.ErrorMessage, nullable: true).Description("Error message if requests fails.");

          Field<ListGraphType<TGraphType>>(
              "data",
              "Project data returned by query.",
              resolve: context => context.Source.Data
          );
      }
  }