old_contents: from django.conf import settings
  from haystack.backends.elasticsearch_backend import ElasticsearchSearchBackend
  from haystack.backends.elasticsearch_backend import ElasticsearchSearchEngine
  from haystack.constants import DEFAULT_OPERATOR, DJANGO_CT, DJANGO_ID, FUZZY_MAX_EXPANSIONS, FUZZY_MIN_SIM, ID
  
  # Elasticsearch + mecab-ko Configurate
  
  
  # Haystack's Elasticsearch Backend Configure
  class ConfigurableElasticBackend(ElasticsearchSearchBackend):
  	pass
  
  
  # Haystack's Elasticsearch Engine Configure
  class ConfigurableElasticSearchEngine(ElasticsearchSearchEngine):
      backend = ConfigurableElasticBackend
  
new_contents: from django.conf import settings
  from haystack.backends.elasticsearch_backend import ElasticsearchSearchBackend
  from haystack.backends.elasticsearch_backend import ElasticsearchSearchEngine
  from haystack.constants import DEFAULT_OPERATOR, DJANGO_CT, DJANGO_ID, FUZZY_MAX_EXPANSIONS, FUZZY_MIN_SIM, ID
  
  # Elasticsearch + mecab-ko Configurate
  
  
  # Haystack's Elasticsearch Backend Configure
  class ConfigurableElasticBackend(ElasticsearchSearchBackend):
      pass
  
  
  # Haystack's Elasticsearch Engine Configure
  class ConfigurableElasticSearchEngine(ElasticsearchSearchEngine):
      backend = ConfigurableElasticBackend
  
subject: update : modify space to tab