public async Task InitAsync(ElementRef element, MapOptions options) { DivId = Guid.NewGuid().ToString(); var optionsJson = JsonConvert.SerializeObject(options, Formatting.None, new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore, ContractResolver = new CamelCasePropertyNamesContractResolver() }); await JsRuntime.JsonNetInvokeAsync <bool>( "googleMapJsFunctions.init", DivId, element, optionsJson); MapComponentInstances.Add(DivId, this); }