'Deregisters a specified Elastic IP address. The address can
then be registered by another stack. For more information, see
`Resource Management`_.
**Required Permissions**: To use this action, an IAM user must
have a Manage permissions level for the stack, or an attached
policy that explicitly grants permissions. For more
information on user permissions, see `Managing User
Permissions`_.
:type elastic_ip: string
:param elastic_ip: The Elastic IP address.'

def deregister_elastic_ip(self, elastic_ip):

    params = {'ElasticIp': elastic_ip}
    return self.make_request(action='DeregisterElasticIp', body=json.dumps(params))
