import json
from generated import action_pb2
from google.protobuf.json_format import MessageToDict

#create feed
feed = action_pb2.ActionFeed()

#create action
action = feed.data.add()
action.entity_id = 'merchant-1'
action.link_id = 'merchant-1-takeout-delivery-action'
action.actions.extend([
     action_pb2.Action(
      food_ordering_info=action_pb2.FoodOrderingInfo(
          service_type=action_pb2.FoodOrderingInfo.ServiceType.DELIVERY
      )
     ),
     action_pb2.Action(
      food_ordering_info=action_pb2.FoodOrderingInfo(
          service_type=action_pb2.FoodOrderingInfo.ServiceType.TAKEOUT
      )
    )
])
action.url = "http://provider.com/merchant-1"

feedJSON = json.dumps(MessageToDict(feed, preserving_proto_field_name=True))
print(feedJSON)