code: def filter_devices(ads, func):
      
      results = []
      for ad in ads:
          if func(ad):
              results.append(ad)
      return results
docs: Finds the AndroidDevice instances from a list that match certain
      conditions.
  
      Args:
          ads: A list of AndroidDevice instances.
          func: A function that takes an AndroidDevice object and returns True
              if the device satisfies the filter condition.
  
      Returns:
          A list of AndroidDevice instances that satisfy the filter condition.