typed.go
func JsonFileArray(path string) ([]Typed, error) {
	data, err := ioutil.ReadFile(path)
	if err != nil {
		return nil, err
	}
	return JsonArray(data)
}
func JsonFileArray(path string) ([]Typed, error) {
	data, err := ioutil.ReadFile(path)
	if err != nil {
		return nil, err
	}
	return JsonArray(data)
}
// Create an array of Typed helpers from a file
// Used for when the root is an array which contains objects