-def create_node(ec, username, pl_user, pl_password, hostname=None, country=None,
- operatingSystem=None, minBandwidth=None, minCpu=None):
+def create_node(ec, username, pl_user, pl_password, critical=True, hostname=None,
+ country=None, operatingSystem=None, minBandwidth=None, minCpu=None):