'Retrieve a network.
:param context: neutron api request context
:param id: UUID representing the network to fetch.
:param fields: a list of strings that are valid keys in a
network dictionary as listed in the
:obj:`RESOURCE_ATTRIBUTE_MAP` object in
:file:`neutron/api/v2/attributes.py`. Only these fields
will be returned.'

@abc.abstractmethod
def get_network(self, context, id, fields=None):

    pass
