def get_event_query_string(self, customer_id):
        return '%s/customers/%s/events' % (self.url_prefix, customer_id)
create a Context and return the string
dataset/ETHPy150Open customerio/customerio-python/customerio/__init__.py/CustomerIO.get_event_query_string--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Mako-0.8.1/mako/runtime.py/_render