Implement Twilio SMS notify MediaUrl support (#24971)

* Implement Twilio SMS notify MediaUrl support

Adds support for setting the `media_url` parameter of the twilio API
client with an optional attribute under the notify `data`
attribute.

Per the twilio docs (https://www.twilio.com/docs/sms/send-messages#include-medi$
this feature is only available in the US and Canada, for
GIF, PNG, or JPEG content.

* lint: fix 80 char ruler

* use kwargs to set the media_url

after testing locally, seems like the previous way of using
object() was not working. this seems to be working

* re-use the ATTR_MEDIAURL attribute

homeassistant/components/twilio_sms/notify.py

@@ -7,11 +7,13 @@ from homeassistant.components.twilio import DATA_TWILIO
 import homeassistant.helpers.config_validation as cv
 
 from homeassistant.components.notify import (ATTR_TARGET, PLATFORM_SCHEMA,
-                                             BaseNotificationService)
+                                             BaseNotificationService,
+                                             ATTR_DATA)
 
 _LOGGER = logging.getLogger(__name__)
 
 CONF_FROM_NUMBER = "from_number"
+ATTR_MEDIAURL = "media_url"
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_FROM_NUMBER):
@@ -39,6 +41,14 @@ class TwilioSMSNotificationService(BaseNotificationService):
     def send_message(self, message="", **kwargs):
         """Send SMS to specified target user cell."""
         targets = kwargs.get(ATTR_TARGET)
+        data = kwargs.get(ATTR_DATA) or {}
+        twilio_args = {
+            'body': message,
+            'from_': self.from_number
+        }
+
+        if ATTR_MEDIAURL in data:
+            twilio_args[ATTR_MEDIAURL] = data[ATTR_MEDIAURL]
 
         if not targets:
             _LOGGER.info("At least 1 target is required")
@@ -46,4 +56,4 @@ class TwilioSMSNotificationService(BaseNotificationService):
 
         for target in targets:
             self.client.messages.create(
-                to=target, body=message, from_=self.from_number)
+                to=target, **twilio_args)