all-of-type

EG:

@AllOfType
object Foo {
  val x: String = "ASDAS"
  val y = "ASDAS"
  val all: Seq[String] = AllOfType.derive
}

Will result in the all value being implemented as Seq(x, y).

Use in your project

Probably the best way: Copy and paste. Modify to suite your needs.