old_contents: import warnings
  from django.conf import settings
  from django.core.urlresolvers import reverse as reverse_default
  from django.utils.functional import lazy
  from tenant_schemas.utils import clean_tenant_url
  
  
  def reverse(viewname, urlconf=None, args=None, kwargs=None, prefix=None,
              current_app=None):
      url = reverse_default(
          viewname=viewname, 
          urlconf=urlconf, 
          args=args, 
          kwargs=kwargs, 
          current_app=current_app
      )
      return clean_tenant_url(url)
  
  reverse_lazy = lazy(reverse, str)
  
new_contents: from django.core.urlresolvers import reverse as reverse_default
  from django.utils.functional import lazy
  from tenant_schemas.utils import clean_tenant_url
  
  
  def reverse(viewname, urlconf=None, args=None, kwargs=None, prefix=None,
              current_app=None):
      url = reverse_default(
          viewname=viewname, 
          urlconf=urlconf, 
          args=args, 
          kwargs=kwargs, 
          current_app=current_app
      )
      return clean_tenant_url(url)
  
  reverse_lazy = lazy(reverse, str)
  
subject: remove unused imports