old_contents: #!/usr/bin/env python
  # vim: ai ts=4 sts=4 et sw=4
  
  
  from rapidsms.backends.base import BackendBase
  
  from rapidsms.contrib.httptester.storage import store_message
  
  
  class HttpTesterCacheBackend(BackendBase):
      """ Simple backend that stores messages in a cache """
  
      def send(self, msg):
          store_message('out', msg.connection.identity, msg.text)
          return True
  
      def start(self):
          """ Override BackendBase.start(), which never returns """
          self._running = True
  
new_contents: #!/usr/bin/env python
  # vim: ai ts=4 sts=4 et sw=4
  
  
  from rapidsms.backends.base import BackendBase
  
  from rapidsms.contrib.httptester.storage import store_message
  
  
  class HttpTesterCacheBackend(BackendBase):
      """ Simple backend that stores messages in a cache """
  
      def send(self, id_, text, identities, context):
          store_message('out', identities[0], text)
          return True
  
      def start(self):
          """ Override BackendBase.start(), which never returns """
          self._running = True
  
subject: update signature of httptester send() to match new api