Stubbing many returns in Spock Specification

MySpec.groovy

import spock.lang.*

class MySpec extends Specification {

  def "should return 1,2,3 respectively when calling size list"() {
    given:
      List list = Stub()
      list.size() >>> [1,2,3]

    expect:
      1 == list.size()
      2 == list.size()
      3 == list.size()
  }
}