practice

type AReader struct{}

type Abser interface {
	Abs() float64
}

type IPAddr [4]byte

type List[T any] struct {
	// contains filtered or unexported fields
}

type MyError struct {
	When time.Time
	What string
}

type SafeCounter struct {
	// contains filtered or unexported fields
}

type Vertex struct {
	X int
	Y int
}

type VertexMethod struct {
	// contains filtered or unexported fields
}

type VertexT struct {
	X, Y float64
}

type Vertexes struct {
	// contains filtered or unexported fields
}