text: class SmartMeterTexasException(Exception):
      """Base exception for more specific exceptions to inherit from."""
  
      ...
  
  
  class SmartMeterTexasAuthError(SmartMeterTexasException):
      """Exception for authentication failures.
      Either wrong username or wrong password."""
  
      ...
  
  
  class SmartMeterTexasAuthExpired(SmartMeterTexasException):
      """Exception for when a token is no longer valid."""
  
      ...
  
  
  class SmartMeterTexasAPIError(SmartMeterTexasException):
      """General exception for unknown API responses."""
  
      ...
  