How to use the rbtools.commands.__init__.Option function in RBTools

]
    )

    perforce_options = OptionGroup(
        name='Perforce Options',
        description='Perforce-specific options for selecting the '
                    'Perforce client and communicating with the '
                    'repository.',
        option_list=[
            Option('--p4-client',
                   dest='p4_client',
                   config_key='P4_CLIENT',
                   default=None,
                   metavar='CLIENT_NAME',
                   help='The Perforce client name for the repository.'),
            Option('--p4-port',
                   dest='p4_port',
                   config_key='P4_PORT',
                   default=None,
                   metavar='PORT',
                   help='The IP address for the Perforce server.'),
            Option('--p4-passwd',
                   dest='p4_passwd',
                   config_key='P4_PASSWD',
                   default=None,
                   metavar='PASSWORD',
                   help='The Perforce password or ticket of the user '
                        'in the P4USER environment variable.'),
        ]
    )

    subversion_options = OptionGroup(

'generation.',
        option_list=[
            Option('--basedir',
                   dest='basedir',
                   config_key='BASEDIR',
                   default=None,
                   metavar='PATH',
                   help='The path within the repository where the diff '
                        'was generated. This overrides the detected path. '
                        'Often used when passing --diff-filename.'),
            Option('--svn-username',
                   dest='svn_username',
                   default=None,
                   metavar='USERNAME',
                   help='The username for the SVN repository.'),
            Option('--svn-password',
                   dest='svn_password',
                   default=None,
                   metavar='PASSWORD',
                   help='The password for the SVN repository.'),
            Option('--svn-show-copies-as-adds',
                   dest='svn_show_copies_as_adds',
                   metavar='y|n',
                   default=None,
                   help='Treat copied or moved files as new files.'
                        '\n'
                        'This is only supported in Subversion 1.7+.',
                   added_in='0.5.2'),
            Option('--svn-changelist',
                   dest='svn_changelist',
                   default=None,
                   metavar='ID',

default=None,
                   metavar='PATH',
                   help='The path within the repository where the diff '
                        'was generated. This overrides the detected path. '
                        'Often used when passing --diff-filename.'),
            Option('--svn-username',
                   dest='svn_username',
                   default=None,
                   metavar='USERNAME',
                   help='The username for the SVN repository.'),
            Option('--svn-password',
                   dest='svn_password',
                   default=None,
                   metavar='PASSWORD',
                   help='The password for the SVN repository.'),
            Option('--svn-show-copies-as-adds',
                   dest='svn_show_copies_as_adds',
                   metavar='y|n',
                   default=None,
                   help='Treat copied or moved files as new files.'
                        '\n'
                        'This is only supported in Subversion 1.7+.',
                   added_in='0.5.2'),
            Option('--svn-changelist',
                   dest='svn_changelist',
                   default=None,
                   metavar='ID',
                   help='Generates the diff for review based on a '
                        'local changelist.',
                   deprecated_in='0.6'),
        ]
    )

'server.'),
            Option('--api-token',
                   dest='api_token',
                   metavar='TOKEN',
                   config_key='API_TOKEN',
                   default=None,
                   help='The API token to use for authentication, instead of '
                        'using a username and password.',
                   added_in='0.7'),
        ]
    )

    repository_options = OptionGroup(
        name='Repository Options',
        option_list=[
            Option('--repository',
                   dest='repository_name',
                   metavar='NAME',
                   config_key='REPOSITORY',
                   default=None,
                   help='The name of the repository configured on '
                        'Review Board that matches the local repository.'),
            Option('--repository-url',
                   dest='repository_url',
                   metavar='URL',
                   config_key='REPOSITORY_URL',
                   default=None,
                   help='The URL for a repository.'
                        '\n'
                        'When generating diffs, this can be used for '
                        'creating a diff outside of a working copy '
                        '(currently only supported by Subversion with '

'specific revisions or --diff-filename, and by '
                        'ClearCase with relative paths outside the view).'
                        '\n'
                        'For Git, this specifies the origin URL of the '
                        'current repository, overriding the origin URL '
                        'supplied by the client.',
                   versions_changed={
                       '0.6': 'Prior versions used the `REPOSITORY` setting '
                              'in .reviewboardrc, and allowed a '
                              'repository name to be passed to '
                              '--repository-url. This is no '
                              'longer supported in 0.6 and higher. You '
                              'may need to update your configuration and '
                              'scripts appropriately.',
                   }),
            Option('--repository-type',
                   dest='repository_type',
                   metavar='TYPE',
                   config_key='REPOSITORY_TYPE',
                   default=None,
                   help='The type of repository in the current directory. '
                        'In most cases this should be detected '
                        'automatically, but some directory structures '
                        'containing multiple repositories require this '
                        'option to select the proper type. The '
                        '`rbt list-repo-types` command can be used to '
                        'list the supported values.'),
        ]
    )

    diff_options = OptionGroup(
        name='Diff Generation Options',

'using a username and password.',
                   added_in='0.7'),
        ]
    )

    repository_options = OptionGroup(
        name='Repository Options',
        option_list=[
            Option('--repository',
                   dest='repository_name',
                   metavar='NAME',
                   config_key='REPOSITORY',
                   default=None,
                   help='The name of the repository configured on '
                        'Review Board that matches the local repository.'),
            Option('--repository-url',
                   dest='repository_url',
                   metavar='URL',
                   config_key='REPOSITORY_URL',
                   default=None,
                   help='The URL for a repository.'
                        '\n'
                        'When generating diffs, this can be used for '
                        'creating a diff outside of a working copy '
                        '(currently only supported by Subversion with '
                        'specific revisions or --diff-filename, and by '
                        'ClearCase with relative paths outside the view).'
                        '\n'
                        'For Git, this specifies the origin URL of the '
                        'current repository, overriding the origin URL '
                        'supplied by the client.',
                   versions_changed={

)

    subversion_options = OptionGroup(
        name='Subversion Options',
        description='Subversion-specific options for controlling diff '
                    'generation.',
        option_list=[
            Option('--basedir',
                   dest='basedir',
                   config_key='BASEDIR',
                   default=None,
                   metavar='PATH',
                   help='The path within the repository where the diff '
                        'was generated. This overrides the detected path. '
                        'Often used when passing --diff-filename.'),
            Option('--svn-username',
                   dest='svn_username',
                   default=None,
                   metavar='USERNAME',
                   help='The username for the SVN repository.'),
            Option('--svn-password',
                   dest='svn_password',
                   default=None,
                   metavar='PASSWORD',
                   help='The password for the SVN repository.'),
            Option('--svn-show-copies-as-adds',
                   dest='svn_show_copies_as_adds',
                   metavar='y|n',
                   default=None,
                   help='Treat copied or moved files as new files.'
                        '\n'
                        'This is only supported in Subversion 1.7+.',

metavar='USERNAME',
                   help='The username for the SVN repository.'),
            Option('--svn-password',
                   dest='svn_password',
                   default=None,
                   metavar='PASSWORD',
                   help='The password for the SVN repository.'),
            Option('--svn-show-copies-as-adds',
                   dest='svn_show_copies_as_adds',
                   metavar='y|n',
                   default=None,
                   help='Treat copied or moved files as new files.'
                        '\n'
                        'This is only supported in Subversion 1.7+.',
                   added_in='0.5.2'),
            Option('--svn-changelist',
                   dest='svn_changelist',
                   default=None,
                   metavar='ID',
                   help='Generates the diff for review based on a '
                        'local changelist.',
                   deprecated_in='0.6'),
        ]
    )

    tfs_options = OptionGroup(
        name='TFS Options',
        description='Team Foundation Server specific options for '
                    'communicating with the TFS server.',
        option_list=[
            Option('--tfs-login',
                   dest='tfs_login',

metavar='REV1:REV2',
                   default=None,
                   help='Generates a diff for the given revision range.',
                   deprecated_in='0.6'),
            Option('-I', '--include',
                   metavar='FILENAME',
                   dest='include_files',
                   action='append',
                   help='Includes only the specified file in the diff. '
                        'This can be used multiple times to specify '
                        'multiple files.'
                        '\n'
                        'Supported by: Bazaar, CVS, Git, Mercurial, '
                        'Perforce, and Subversion.',
                   added_in='0.6'),
            Option('-X', '--exclude',
                   metavar='PATTERN',
                   dest='exclude_patterns',
                   action='append',
                   config_key='EXCLUDE_PATTERNS',
                   help='Excludes all files that match the given pattern '
                        'from the diff. This can be used multiple times to '
                        'specify multiple patterns. UNIX glob syntax is used '
                        'for pattern matching.'
                        '\n'
                        'Supported by: Bazaar, CVS, Git, Mercurial, '
                        'Perforce, and Subversion.',
                   extended_help=(
                       'Patterns that begin with a path separator (/ on Mac '
                       'OS and Linux, \\ on Windows) will be treated as being '
                       'relative to the root of the repository. All other '
                       'patterns are treated as being relative to the current '

'list the supported values.'),
        ]
    )

    diff_options = OptionGroup(
        name='Diff Generation Options',
        description='Options for choosing what gets included in a diff, '
                    'and how the diff is generated.',
        option_list=[
            Option('--revision-range',
                   dest='revision_range',
                   metavar='REV1:REV2',
                   default=None,
                   help='Generates a diff for the given revision range.',
                   deprecated_in='0.6'),
            Option('-I', '--include',
                   metavar='FILENAME',
                   dest='include_files',
                   action='append',
                   help='Includes only the specified file in the diff. '
                        'This can be used multiple times to specify '
                        'multiple files.'
                        '\n'
                        'Supported by: Bazaar, CVS, Git, Mercurial, '
                        'Perforce, and Subversion.',
                   added_in='0.6'),
            Option('-X', '--exclude',
                   metavar='PATTERN',
                   dest='exclude_patterns',
                   action='append',
                   config_key='EXCLUDE_PATTERNS',
                   help='Excludes all files that match the given pattern '