'Returns details about the specified delivery channel. If a
delivery channel is not specified, this action returns the
details of all delivery channels associated with the account.
:type delivery_channel_names: list
:param delivery_channel_names: A list of delivery channel names.'

def describe_delivery_channels(self, delivery_channel_names=None):

    params = {}
    if (delivery_channel_names is not None):
        params['DeliveryChannelNames'] = delivery_channel_names
    return self.make_request(action='DescribeDeliveryChannels', body=json.dumps(params))
