 check argument values
 check argument values

skraghu/softlayer-python,allmightyspiff/softlayer-python,iftekeriba/softlayer-python,nanjj/softlayer-python,kyubifire/softlayer-python,underscorephil/softlayer-python,softlayer/softlayer-python,briancline/softlayer-python,Neetuj/softlayer-python,cloudify-cosmo/softlayer-python