new_contents: from corehq.apps.accounting.async_handlers import BaseSelect2AsyncHandler
  from corehq.apps.accounting.models import BillingAccount
  
  
  class Select2IdentityProviderHandler(BaseSelect2AsyncHandler):
      slug = 'select2_identity_provider'
      allowed_actions = [
          'owner',
      ]
  
      @property
      def owner_response(self):
          accounts = BillingAccount.objects.filter(is_customer_billing_account=True)
          if self.search_string:
              accounts = accounts.filter(name__icontains=self.search_string)
          return [(a.id, a.name) for a in accounts.order_by('name')]
  
  
  
subject: add async handler for upcoming identity provider view