'List the deployed container images
:param image: Filter to containers with a certain image
:type  image: :class:`.ContainerImage`
:param cluster: Filter to containers in a cluster
:type  cluster: :class:`.ContainerCluster`
:rtype: ``list`` of :class:`.Container`'

def list_containers(self, image=None, cluster=None):

    raise NotImplementedError('list_containers    not    implemented    for    this    driver')
