'Nimbus doesn\'t support elastic IPs, so this is a pass-through.
@inherits: :class:`EC2NodeDriver.ex_describe_addresses`'

def ex_describe_addresses(self, nodes):

    nodes_elastic_ip_mappings = {}
    for node in nodes:
        nodes_elastic_ip_mappings[node.id] = []
    return nodes_elastic_ip_mappings
