def __virtual__():
    if 'haproxy.get_sessions' in __salt__:
        return __virtualname__
    else:
        return False
Provides a way to modify the following attributes of a domain
dataset/ETHPy150Open saltstack/salt/salt/beacons/haproxy.py/__virtual__--crossover with--dataset/ETHPy150Open rackspace/pyrax/pyrax/clouddns.py/CloudDNSManager.update_domain