Command-line interface to the OpenStack APIs
Bases: osc_lib.shell.OpenStackShell
Return an argparse option parser for this application.
Subclasses may override this method to extend the parser with more global options.
description (str) – full description of the application
version (str) – version number for the application
argparse_kwargs – extra keyword argument passed to the ArgumentParser constructor
Global app init bits:
set up API versions
validate authentication info
authenticate against Identity if requested
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