def requestEnv(self, env={}):
        for variable, value in env.iteritems():
            data = common.NS(variable) + common.NS(value)
            self.sendRequest('env', data)
Retrieve unique object or create, if it doesn't exist. Returns a tuple of 
dataset/ETHPy150Open sporsh/carnifex/carnifex/ssh/session.py/SSHSession.requestEnv--crossover with--dataset/ETHPy150Open aparo/django-elasticsearch/django_elasticsearch/manager.py/QuerySet.get_or_create