in lib/eventstream_rpc_utils.ts [341:349]
export function validateValueAsDate(value : any, propertyName?: string, type?: string) {
if (value === undefined) {
throwMissingPropertyError(propertyName, type);
}
if (!(value instanceof Date) || isNaN((value as Date).getTime())) {
throwInvalidPropertyValueError('a Date value', propertyName, type);
}
}