code: def glance(self, user, **kwargs):
          
          payload = {"user": user, "token": self.token}
  
          for key, value in kwargs.iteritems():
              if key not in Pushover.glance_keywords:
                  raise ValueError("{0}: invalid glance parameter".format(key))
              else:
                  payload[key] = value
  
          return Request("post", GLANCE_URL, payload)
docs: Send a glance to the user. The default property is ``text``, as this
          is used on most glances, however a valid glance does not need to
          require text and can be constructed using any combination of valid
          keyword properties. The list of valid keywords is ``title, text,
          subtext, count, percent and device`` which are  described in the
          Pushover Glance API documentation.
  
          This method returns a :class:`GlanceRequest` object.