$ testcloud -h
usage: testcloud [-h] [-c CONNECTION] {instance, ...} ...
Testcloud is a small wrapper program designed to quickly and simply boot images designed for cloud systems.
options:
  -h, --help            show this help message and exit
  -c CONNECTION, --connection CONNECTION
                        libvirt connection url to use
Command Types:
  Types of commands available
  {instance, ...}
                        <command> --help
    instance            help on instance options
    ...

$ testcloud instance
ERROR:instance subcommand was removed from testcloud. For instance operations, omit the 'instance' keyword.