code: def supported_devices(self):
      return SupportedDeviecs(
          valid_devices=self.backend.valid_devices,
          invalid_devices=self.backend.invalid_devices,
      )
  
imports: from abc import ABC, abstractproperty, abstractmethod
  from dataclasses import dataclass
  from typing import List
  import ivy
label_desc: Use image node_id 4 for calling the FrontendConfigWithBackend obj's underlying member method code with example usage: obj.supported_devices() and returns: SupportedDeviecs