code: def get_resource_by_key(self, resource_key):
          
  
          # search for quick_key by default
          lookup_order = ["quick_key", "folder_key"]
  
          if len(resource_key) == FOLDER_KEY_LENGTH:
              lookup_order = ["folder_key", "quick_key"]
  
          resource = None
  
          for lookup_key in lookup_order:
              try:
                  if lookup_key == "folder_key":
                      info = self.api.folder_get_info(folder_key=resource_key)
                      resource = Folder(info['folder_info'])
                  elif lookup_key == "quick_key":
                      info = self.api.file_get_info(quick_key=resource_key)
                      resource = File(info['file_info'])
              except MediaFireApiError:
                  # TODO: Check response code
                  pass
  
              if resource:
                  break
  
          if not resource:
              raise ResourceNotFoundError(resource_key)
  
          return resource
docs: Return resource by quick_key/folder_key.
  
          key -- quick_key or folder_key