resource "aws_computed_source" "intermediates" {}

module "test_mod" {
  source = "./mod"

  services {
    "exists" = "true"
    "elb" = "${aws_computed_source.intermediates.computed_read_only}"
  }

  services {
    "otherexists" = " true"
    "elb" = "${aws_computed_source.intermediates.computed_read_only}"
  }
}