text: import os
  from os import getenv
  
  """Application configuration"""
  # system import
  import os
  class Config:
      """Base config class"""
      DEBUG = True
      SECRET = os.getenv('SECRET')
  class Development(Config):
      """Development configurations"""
      DEBUG = True
  class Testing(Config):
      """Testing configurations"""
      DEBUG = True
      TESTING = True
      SECRET_KEY = "SECRET"
  configuration = {
      "development": Development,
      "testing": Testing
  }