public WritableOptions(
string jsonFilePath,
string sectionName,
IOptionsMonitor <T> options,
IConfigurationRoot configuration,
Func <JsonSerializerOptions> defaultSerializerOptions = null)
{
_jsonFilePath = jsonFilePath;
_sectionName = sectionName;
_options = options;
_configuration = configuration;
_defaultSerializerOptions = defaultSerializerOptions == null?JsonFileHelper.DefaultSerializerOptions() : defaultSerializerOptions();
}