new_contents: import hashers
  from django.test import TestCase
  
  class HashersTests(TestCase):
      def test_sha256_hasher(self):
          hasher = hashers.SHA256PasswordHasher()
          hashed = hasher.encode('admin', '')
          assert hasher.verify('admin', hashed)
          assert hashed == 'sha256$$8c6976e5b5410415bde908bd4dee15dfb167a9c873fc4bb8a81f6f2ab448a918'
  
  
subject: add tests