variable "beep" { type = string default = "BEEP" } output "beep" { type = string value = var.beep } stack "specified" { source = "./child" inputs = { boop = var.beep } } stack "defaulted" { source = "./child" inputs = {} } output "specified" { type = string value = stack.specified.result } output "defaulted" { type = string value = stack.defaulted.result }