'constructor for handling rolebinding options'

def __init__(self, name, namespace, kubeconfig, group_names=None, role_ref=None, subjects=None, usernames=None):

    self.kubeconfig = kubeconfig
    self.name = name
    self.namespace = namespace
    self.group_names = group_names
    self.role_ref = role_ref
    self.subjects = subjects
    self.usernames = usernames
    self.data = {}
    self.create_dict()
