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Package objects
// in file gardening/fruits/Fruit.scala
package gardening.fruits
case class Fruit(name: String, color: String)
object Apple extends Fruit("Apple", "green")
object Plum extends Fruit("Plum", "blue")
object Banana extends Fruit("Banana", "yellow")package object fruits extends FruitAliases with FruitHelpers {
// helpers and variables follows here
}Scala provides package objects as a convenient container shared across an entire package. Package objects can contain arbitrary definitions, not just variable and method definitions. .
Package objects → are a → Objects.