Appdaemon/0.84beta issues with self.call_service("notify/ios_iphone)

[grantclem]

Home Assistant release with the issue:

Last working Home Assistant release (if known):
0.83.3

Operating environment (Hass.io/Docker/Windows/etc.):

Running Appdaemon in a seperate virtual environment for automations

Component/platform:

Description of problem:
Since the beta install there has been issues with a few of the AD apps running, which seem have the
"self.call_service("notify/ios_iphone" line in the code. I removed the line from the one of the apps and appeared to work fine after that. Re-install the line of code and Appdaemon crashes again. Logs from AD and HA at the same time suggest it is the notify/ios service causing the problem. Also removed the AD virtual env, reinstalled AD and the problem persisted. Also deleted the "home-assistant_v2.db" from the directory, restarted HA and still the same problem.

Appdaemon Logfile:

2018-12-07 23:27:21.637771 WARNING AppDaemon: HASS: Unexpected result from Home Assistant, id = 2
2018-12-07 23:27:21.638185 WARNING AppDaemon: HASS: {'id': 2, 'type': 'result', 'success': False, 'error': {'code': 'unknown_error', 'message': 'Invalid JSON in response'}}
2018-12-07 23:27:21.639058 WARNING AppDaemon: HASS: Disconnected from Home Assistant, retrying in 5 seconds
2018-12-07 23:27:26.648631 INFO AppDaemon: HASS: Connected to Home Assistant 0.84.0b1
2018-12-07 23:27:26.712384 INFO AppDaemon: Processing restart for HASS

HA log:

2018-12-07 23:27:21 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140418991884832] Unable to serialize to JSON: Object of type 'Template' is not JSON serializable
{'id': 2, 'type': 'event', 'event': {'event_type': 'call_service', 'data': {'domain': 'notify', 'service': 'ios_grants_iphone', 'service_data': {'message': <homeassistant.helpers.template.Template object at 0x7fb5cc734240>}}, 'origin': 'LOCAL', 'time_fired': datetime.datetime(2018, 12, 7, 15, 27, 21, 626112, tzinfo=), 'context': {'id': 'f3f623b80b8c4f80a41129e677930cb5', 'user_id': None}}}
2018-12-07 23:27:21 WARNING (Recorder) [homeassistant.components.recorder] Event is not JSON serializable: <Event call_service[L]: domain=notify, service=ios_grants_iphone, service_data=message=<homeassistant.helpers.template.Template object at 0x7fb5cc734240>>

Example App from AD:
def record(self, entity, attribute, old, new, kwargs):
self.log("MANUAL RECORDING TRIGGERED")
self.call_service("shell_command/turn_on_driveway_camera") ### Call IFTTT trigger
self.call_service("notify/ios_grants_iphone", title = "Test", message = "Test")
self.turn_off("input_boolean.camera_driveway")
self.run_in(self.run_script_driveway,self.delay) # Delay 180 secs, then run snapshot

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

Traceback (if applicable):

Additional information:

[VDRainer]

#18900

[cgarwood]

Same issue as #18900