How to access custom RocketChat model added at server models in Client?

I have created a custom location model and registered it on server and can access it at RocketChat.models.Locations on server.

When I try to access the method of the same model on client I get the method as undefined.
Then after trying console.log('RocketChat.models') I observed that RocketChat.models.Locations is just an empty Object basically RocketChat.models.Locations = {}

All other models are accessible and are either LocalCollections or Collections except the model I defined.

Did I miss something while defining the new model?

I am trying to add new models to RocketChat specifically to store Location information. I have extended the models.base to Glowstaffmodels .I observed the migrations folder and thought I need to create a migration file but I couldn’t find documentation for that. Can anybody point me on how to add a new model.