document:
  dsl: '1.0.0-alpha5'
  namespace: default
  name: do
  version: '1.0.0'
do:
  - setRed:
      set:
        colors: ${ .colors + ["red"] }
  - setGreen:
      set:
        colors: ${ .colors + ["green"] }
  - setBlue:
      set:
        colors: ${ .colors + ["blue"] }
      output:
        as: "${ {  resultColors: .colors } }"
