How to use the awscli.arguments.CustomArgument function in awscli

'type': 'object',
                'properties': {
                    'Name': {
                        'type': 'string'
                    },
                    'Args': {
                        'type': 'array',
                        'items': {
                            'type': 'string'
                        }
                    }
                }
            }
        }
        argument_model = create_argument_model_from_schema(schema)
        cli_argument = CustomArgument('foo', argument_model=argument_model)

        expected = [
            {"Name": "foo",
             "Args": ["a", "k1=v1", "b"]},
            {"Name": "bar",
             "Args": ["baz"]},
            {"Name": "single_kv",
             "Args": ["key=value"]},
            {"Name": "single_v",
             "Args": ["value"]}
        ]

        simplified = self.shorthand(cli_argument, [
            "Name=foo,Args=[a,k1=v1,b]",
            "Name=bar,Args=baz",
            "Name=single_kv,Args=[key=value]",

def _build_arg_table(self):
        arg_table = OrderedDict()
        self._session.emit('building-arg-table.%s' % self.NAME,
                           arg_table=self.ARG_TABLE)
        for arg_data in self.ARG_TABLE:

            # If a custom schema was passed in, create the argument_model
            # so that it can be validated and docs can be generated.
            if 'schema' in arg_data:
                argument_model = create_argument_model_from_schema(
                    arg_data.pop('schema'))
                arg_data['argument_model'] = argument_model
            custom_argument = CustomArgument(**arg_data)

            arg_table[arg_data['name']] = custom_argument
        return arg_table

def add_to_params(self, parameters, value):

        if value is None:
            return

        if parameters.get('parameterValues', None) is not None:
            raise Exception(
                "Only parameter-values or parameter-values-uri is allowed"
            )

        parsed = json.loads(value)
        parameter_values = translator.definition_to_parameter_values(parsed)
        parameters['parameterValues'] = parameter_values


class ParameterValuesInlineArgument(CustomArgument):
    def add_to_params(self, parameters, value):

        if value is None:
            return

        if parameters.get('parameterValues', None) is not None:
            raise Exception(
                "Only parameter-values or parameter-values-uri is allowed"
            )

        parameter_object = {}
        # break string into = point
        for argument in value:
            try:
                argument_components = argument.split('=', 1)
                key = argument_components[0]

def resolve_given_outfile_path(path):
    """Asserts that a path is writable and returns the expanded path"""
    if path is None:
        return
    outfile = os.path.expanduser(os.path.expandvars(path))
    if not os.access(os.path.dirname(os.path.abspath(outfile)), os.W_OK):
        raise ValueError('Unable to write to file: %s' % outfile)
    return outfile


def is_parsed_result_successful(parsed_result):
    """Returns True if a parsed result is successful"""
    return parsed_result['ResponseMetadata']['HTTPStatusCode'] < 300


class OverrideRequiredArgsArgument(CustomArgument):
    """An argument that if specified makes all other arguments not required

    By not required, it refers to not having an error thrown when the
    parser does not find an argument that is required on the command line.
    To obtain this argument's property of ignoring required arguments,
    subclass from this class and fill out the ``ARG_DATA`` parameter as
    described below. Note this class is really only useful for subclassing.
    """

    # ``ARG_DATA`` follows the same format as a member of ``ARG_TABLE`` in
    # ``BasicCommand`` class as specified in
    # ``awscli/customizations/commands.py``.
    #
    # For example, an ``ARG_DATA`` variable would be filled out as:
    #
    # ARG_DATA =

if value:
            value = [{'CidrIp': value}]
            _build_ip_permissions(parameters, 'IpRanges', value)


class SourceGroupArgument(CustomArgument):

    def add_to_params(self, parameters, value):
        if value:
            if value.startswith('sg-'):
                _build_ip_permissions(parameters, 'GroupId', value)
            else:
                _build_ip_permissions(parameters, 'GroupName', value)


class GroupOwnerArgument(CustomArgument):

    def add_to_params(self, parameters, value):
        if value:
            _build_ip_permissions(parameters, 'UserId', value)

return
        parsed = json.loads(value)
        api_objects = translator.definition_to_api_objects(parsed)
        parameter_objects = translator.definition_to_api_parameters(parsed)
        parameter_values = translator.definition_to_parameter_values(parsed)
        parameters['pipelineObjects'] = api_objects
        # Use Parameter objects and values from def if not already provided
        if 'parameterObjects' not in parameters \
                and parameter_objects is not None:
            parameters['parameterObjects'] = parameter_objects
        if 'parameterValues' not in parameters \
                and parameter_values is not None:
            parameters['parameterValues'] = parameter_values


class ParameterObjectsArgument(CustomArgument):
    def add_to_params(self, parameters, value):
        if value is None:
            return
        parsed = json.loads(value)
        parameter_objects = translator.definition_to_api_parameters(parsed)
        parameters['parameterObjects'] = parameter_objects


class ParameterValuesArgument(CustomArgument):
    def add_to_params(self, parameters, value):

        if value is None:
            return

        if parameters.get('parameterValues', None) is not None:
            raise Exception(

class SecondaryPrivateIpAddressCountArgument(CustomArgument):

    def add_to_parser(self, parser, cli_name=None):
        parser.add_argument(self.cli_name, dest=self.py_name,
                            default=self._default, type=int)

    def add_to_params(self, parameters, value):
        if value:
            _build_network_interfaces(parameters,
                                      'SecondaryPrivateIpAddressCount',
                                      value)


class AssociatePublicIpAddressArgument(CustomArgument):

    def add_to_params(self, parameters, value):
        if value is True:
            _build_network_interfaces(parameters,
                                      'AssociatePublicIpAddress',
                                      value)


class NoAssociatePublicIpAddressArgument(CustomArgument):

    def add_to_params(self, parameters, value):
        if value is False:
            _build_network_interfaces(parameters,
                                      'AssociatePublicIpAddress',
                                      value)

def _create_cli_argument(self, option_name, option_params):
        return CustomArgument(
            option_name, help_text=option_params.get('help', ''),
            dest=option_params.get('dest'),
            default=option_params.get('default'),
            action=option_params.get('action'),
            required=option_params.get('required'),
            choices=option_params.get('choices'),
            cli_type_name=option_params.get('type'))

EVENTS = [
    ('building-argument-table.ec2.bundle-instance', _add_params),
    ('operation-args-parsed.ec2.bundle-instance', _check_args),
    ('before-parameter-build.ec2.BundleInstance', _check_params),
]


def register_bundleinstance(event_handler):
    # Register all of the events for customizing BundleInstance
    for event, handler in EVENTS:
        event_handler.register(event, handler)


class BundleArgument(CustomArgument):

    def __init__(self, storage_param, *args, **kwargs):
        super(BundleArgument, self).__init__(*args, **kwargs)
        self._storage_param = storage_param

    def _build_storage(self, params, value):
        # Build up the Storage data structure
        if 'Storage' not in params:
            params['Storage'] = {'S3': {}}
        params['Storage']['S3'][self._storage_param] = value

    def add_to_params(self, parameters, value):
        if value:
            self._build_storage(parameters, value)

session=session,
            **S3_LOCATION_ARG_DESCRIPTION
        )
    )
    github_model = create_argument_model_from_schema(GITHUB_LOCATION_SCHEMA)
    argument_table[GITHUB_LOCATION_ARG_DESCRIPTION['name']] = (
        GitHubLocationArgument(
            argument_model=github_model,
            session=session,
            **GITHUB_LOCATION_ARG_DESCRIPTION
        )
    )
    argument_table['revision'].required = False


class CodeDeployCustomLocationArgument(CustomArgument):
    def __init__(self, session, *args, **kwargs):
        super(CodeDeployCustomLocationArgument, self).__init__(*args, **kwargs)
        self._session = session

    def add_to_params(self, parameters, value):
        if value is None:
            return
        parsed = self._session.emit_first_non_none_response(
            'process-cli-arg.codedeploy.%s' % self.name,
            param=self.argument_model,
            cli_argument=self,
            value=value,
            operation=None
        )
        if parsed is None:
            parsed = unpack_cli_arg(self, value)