private static void Generate500k(Generator generator)
        {
            var a = new Docss()
            {
                docs = generator.Generate(157500, 15000, 325000, 2000, 500)
            };
            var json = JsonSerializer.Serialize(a);

            System.IO.File.WriteAllText(@"..\..\..\500k.json", json);
        }
        private static void Generate250k(Generator generator)
        {
            var a = new Docss()
            {
                docs = generator.Generate(78750, 7500, 162500, 1000, 250)
            };
            var json = JsonSerializer.Serialize(a);

            System.IO.File.WriteAllText(@"..\..\..\250k.json", json);
        }