code: def make_application_private(application_id, sar_client=None):
      
      if not application_id:
          raise ValueError('Require application id to make the app private')
  
      if not sar_client:
          sar_client = boto3.client('serverlessrepo')
  
      sar_client.put_application_policy(
          ApplicationId=application_id,
          Statements=[]
      )
docs: Set the application to be private.
  
      :param application_id: The Amazon Resource Name (ARN) of the application
      :type application_id: str
      :param sar_client: The boto3 client used to access SAR
      :type sar_client: boto3.client
      :raises ValueError