text: import os
  
  import databases
  import sqlalchemy
  
  DB_CONNECTOR = os.getenv('APP_DB_CONNECTOR')
  DB_USERNAME = os.getenv('APP_DB_USERNAME')
  DB_PASSWORD = os.getenv('APP_DB_PASSWORD')
  DB_HOST = os.getenv('APP_DB_HOST')
  DB_PORT = os.getenv('APP_DB_PORT')
  DB_DATABASE = os.getenv('APP_DB_DATABASE')
  
  DB_URL = f'{DB_CONNECTOR}://{DB_USERNAME}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_DATABASE}'
  
  db: databases.Database = databases.Database(DB_URL)
  metadata: sqlalchemy.MetaData = sqlalchemy.MetaData()
  