def __init__ (self, auth=None, hostname=None, login=None, slicename=None,**kwargs):
#def hostname_to_hrn(auth_hrn, login_base, hostname):
def __init__ (self, auth=None, hostname=None, login=None, slicename=None,**kwargs):
#def hostname_to_hrn(auth_hrn, login_base, hostname):