schema

type Attribute struct {
	// Type is the type of the value and must be one of the ValueType values.
	//   TypeBool - bool
	//   TypeInt - int
	//   TypeFloat - float64
	//   TypeString - string
	//   TypeList - []interface{}
	Type ValueType

	// Elem represents the element type. THis may only be set for only set for TypeList.
	Elem *Attribute

	// is this atribute required
	Required bool
}

type ValueType int