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  • ami_root_device (RootBlockDevice) - A block device mapping describing the root device of the AMI. This looks like the mappings in ami_block_device_mapping, except with an additional field:

    • source_device_name (string) - The device name of the block device on the source instance to be used as the root device for the AMI. This must correspond to a block device in launch_block_device_mapping.