'Create a group.
:type group_name: string
:param group_name: The name of the new group
:type path: string
:param path: The path to the group (Optional).  Defaults to /.'

def create_group(self, group_name, path='/'):

    params = {'GroupName': group_name, 'Path': path}
    return self.get_response('CreateGroup', params)
