out_directive_partial

type BaseMetal struct {
	BaseNode
	AtomicNumber int    `json:"atomicNumber"`
	Name         string `json:"name"`
}

type BaseNode struct {
	ID string `json:"id"`
}

type Element interface {
	IsNode()
	IsElement()
	GetID() string
	GetName() string
}

type Gold struct {
	BaseMetal
	Karat int `json:"karat"`
}

type Metal interface {
	IsElement()
	IsNode()
	IsMetal()
	GetID() string
	GetName() string
	GetAtomicNumber() int
}

type Node interface {
	IsNode()
	GetID() string
}

type Query struct {
}

type Silver struct {
	BaseMetal
	Purity float64 `json:"purity"`
}