AWS.ControlTower
module LandingZone : sig ... end
see http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-controltower-landingzone.html
module EnabledControl : sig ... end
see http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-controltower-enabledcontrol.html
module EnabledBaseline : sig ... end
see http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-controltower-enabledbaseline.html