Values_0.LaunchTemplateBlockDeviceMappingSourceDescribes a block device mapping.
type nonrec t = {deviceName : String_.t option;The device name.
*)virtualName : String_.t option;The virtual device name (ephemeralN).
*)ebs : LaunchTemplateEbsBlockDevice.t option;Information about the block device for an EBS volume.
*)noDevice : String_.t option;To omit the device from the block device mapping, specify an empty string.
*)}