Sends a FCM (or GCM) notification to one or more registration_ids. The registration_ids
	can be a list or a single string. This will send the notification as json data.

	A reference of extra keyword arguments sent to the server is available here:
	https://firebase.google.com/docs/cloud-messaging/http-server-ref#table1

def send_message(registration_ids, data, cloud_type, application_id=None, **kwargs):
	"""
	Sends a FCM (or GCM) notification to one or more registration_ids. The registration_ids
	can be a list or a single string. This will send the notification as json data.

	A reference of extra keyword arguments sent to the server is available here:
	https://firebase.google.com/docs/cloud-messaging/http-server-ref#table1
	"""
	if cloud_type in ("FCM", "GCM"):
		max_recipients = get_manager().get_max_recipients(cloud_type, application_id)
	else:
		raise ImproperlyConfigured("cloud_type must be FCM or GCM not %s" % str(cloud_type))

	# Checks for valid recipient
	if registration_ids is None and "/topics/" not in kwargs.get("to", ""):
		return

	# Bundles the registration_ids in an list if only one is sent
	if not isinstance(registration_ids, list):
		registration_ids = [registration_ids] if registration_ids else None

	# FCM only allows up to 1000 reg ids per bulk message
	# https://firebase.google.com/docs/cloud-messaging/server#http-request
	if registration_ids:
		ret = []
		for chunk in _chunks(registration_ids, max_recipients):
			ret.append(_cm_send_request(
				chunk, data, cloud_type=cloud_type, application_id=application_id, **kwargs
			))
		return ret[0] if len(ret) == 1 else ret
	else:
		return _cm_send_request(None, data, cloud_type=cloud_type, **kwargs)