How to use Azure Managed Identity to access Azure Cosmos db on ruby on rails?

I have a ruby on rails application. I am using mongoid gem to connect to Azure cosmos db for mongo service on azure. Currently, I use username and password for authentication. Instead of using username and password for authentication, I want to use Azure Managed Identity.

In config/mongoid.yml file, following is the configuration

      options:
        user: <%= ENV['USERNAME'] %>
        password: <%= ENV['PASSWORD'] %>
        ssl: true
        auth_source: admin

Also, documentation of mongoid says, qouting the documentation here:-

Change the default authentication mechanism. Valid options are: :scram, :mongodb_cr, :mongodb_x509, and :plain. Note that all authentication mechanisms require username and password, with the exception of :mongodb_x509. Default on mongoDB 3.0 is :scram, default on 2.4 and 2.6 is :plain.

I have gone through the following documentation, where they have used AzureIdentity library for .Net, Java, Javascript to authenticate using MI. I am looking for the same for ruby on rails.

Could anyone please help/guide me with this?