old_contents: class Config(object):
      SECRET_KEY = 'secret key'
      ES_URL = 'http://127.0.0.1:5001' # default port is 9200
  
      # for PROVES app
      PROVES_ES_PREFIX = 'prov_es'
      PROVES_ES_ALIAS = 'prov_es'
  
      # ES template
      ES_TEMPLATE = "../config/es_template-prov_es.json"
  
  
  class ProdConfig(Config):
      SQLALCHEMY_DATABASE_URI = 'sqlite:///../database.db'
  
      CACHE_TYPE = 'simple'
  
  
  class DevConfig(Config):
      DEBUG = True
      DEBUG_TB_INTERCEPT_REDIRECTS = False
  
      SQLALCHEMY_DATABASE_URI = 'sqlite:///../database.db'
      SQLALCHEMY_ECHO = True
  
      CACHE_TYPE = 'null'
  
      # This allows us to test the forms from WTForm
      WTF_CSRF_ENABLED = False
  
      # for PROVES app
      PROVES_ES_PREFIX = 'prov_es_dev'
  
new_contents: class Config(object):
      SECRET_KEY = 'secret key'
      ES_URL = 'http://127.0.0.1:5001' # default port is 9200
  
      # for PROVES app
      PROVES_ES_PREFIX = 'prov_es'
      PROVES_ES_ALIAS = 'prov_es'
  
      # ES template
      ES_TEMPLATE = "../config/es_template-prov_es.json"
  
  
  class ProdConfig(Config):
      SQLALCHEMY_DATABASE_URI = 'sqlite:///../database.db'
  
      CACHE_TYPE = 'null'
  
  
  class DevConfig(Config):
      DEBUG = True
      DEBUG_TB_INTERCEPT_REDIRECTS = False
  
      SQLALCHEMY_DATABASE_URI = 'sqlite:///../database.db'
      SQLALCHEMY_ECHO = True
  
      CACHE_TYPE = 'null'
  
      # This allows us to test the forms from WTForm
      WTF_CSRF_ENABLED = False
  
      # for PROVES app
      PROVES_ES_PREFIX = 'prov_es_dev'
  
subject: use NullCache in prod env