What is embedding in Go and how does it work?

Embedding in Go: • Composition mechanism (not inheritance) • Embed types in structs • Promotes embedded type's methods • Access embedded fields directly • Enables polymorphism Example: type Engine struct { Power int } func (e Engine) Start() { fmt.Println("Engine starting") } type Car struct { Engine // embedded Brand string } car := Car{Engine{200}, "Toyota"} car.Start() // calls Engine.Start() car.Engine.Start() // explicit access