How to use the cloudbridge.cloud.interfaces.services.CloudService function in cloudbridge

:type  label: ``str``
        :param label: The label for the snapshot.

        :type  description: ``str``
        :param description: An optional description that may be supported by
                            some providers. Providers that do not support this
                            property will return None.

        :rtype: ``object`` of :class:`.Snapshot`
        :return: a newly created Snapshot object.
        """
        pass


class StorageService(CloudService):

    """
    The Storage Service interface provides access to block device services,
    such as volume and snapshot services, as well as object store services,
    such as buckets, in the provider.
    """
    __metaclass__ = ABCMeta

    @abstractproperty
    def volumes(self):
        """
        Provides access to volumes (i.e., block storage) for this provider.

        Example:

        .. code-block:: python

print(buck_obj.name)


        :type object_name: str
        :param object_name: The name of this bucket.

        :type bucket: str
        :param bucket: A bucket object.

        :return:  a BucketObject instance
        :rtype: ``object`` of :class:`.BucketObject`
        """
        pass


class SecurityService(CloudService):

    """
    The security service interface can be used to access security related
    functions in the provider, such as firewall control and keypairs.
    """
    __metaclass__ = ABCMeta

    @abstractproperty
    def key_pairs(self):
        """
        Provides access to key pairs for this provider.

        Example:

        .. code-block:: python

:type  snapshot: ``str`` or :class:`.Snapshot` object
        :param snapshot: An optional reference to a snapshot from which this
                         volume should be created.

        :type  description: ``str``
        :param description: An optional description that may be supported by
                            some providers. Providers that do not support this
                            property will return ``None``.

        :rtype: ``object`` of :class:`.Volume`
        :return: a newly created Volume object.
        """
        pass


class SnapshotService(PageableObjectMixin, CloudService):
    """
    Base interface for a Snapshot Service.
    """
    __metaclass__ = ABCMeta

    @abstractmethod
    def get(self, volume_id):
        """
        Returns a snapshot given its id.

        :rtype: ``object`` of :class:`.Snapshot`
        :return: a Snapshot object or ``None`` if the snapshot does not exist.
        """
        pass

    @abstractmethod

Example:

        .. code-block:: python

            for region in provider.compute.regions:
                print("Region: ", region.name)
                for zone in region.zones:
                   print("\\tZone: ", zone.name)

        :rtype: :class:`.RegionService`
        :return: a RegionService object
        """
        pass


class InstanceService(PageableObjectMixin, CloudService):
    """
    Provides access to instances in a provider, including creating,
    listing and deleting instances.
    """
    __metaclass__ = ABCMeta

    @abstractmethod
    def __iter__(self):
        """
        Iterate through the  list of instances.

        Example:
        ```
        for instance in provider.compute.instances:
            print(instance.name)
        ```

pass

    @abstractmethod
    def find(self, **kwargs):
        """
        Searches for a region by a given list of attributes.

        Supported attributes: name

        :rtype: ``object`` of :class:`.Region`
        :return: a Region object
        """
        pass


class GatewayService(CloudService):
    """
    Manage internet gateway resources.
    """
    __metaclass__ = ABCMeta

    @abstractmethod
    def get_or_create(self, network):
        """
        Creates new or returns an existing internet gateway for a network.

        The returned gateway object can subsequently be attached to a router to
        provide internet routing to a network.

        :type  network: ``Network``
        :param network: The network to which the gateway should be attached.

"""
        pass

    def create_launch_config(self):
        """
        Creates a ``LaunchConfig`` object which can be used
        to set additional options when launching an instance, such as
        block device mappings and network interfaces.

        :rtype: ``object`` of :class:`.LaunchConfig`
        :return:  an instance of a LaunchConfig class
        """
        pass


class VolumeService(PageableObjectMixin, CloudService):
    """
    Base interface for a Volume Service.
    """
    __metaclass__ = ABCMeta

    @abstractmethod
    def get(self, volume_id):
        """
        Returns a volume given its id.

        :rtype: ``object`` of :class:`.Volume`
        :return: a Volume object or ``None`` if the volume does not exist.
        """
        pass

    @abstractmethod