code: def GetHashers(cls, hasher_names):
      
      hashers = []
      for hasher_name, hasher_class in iter(cls._hasher_classes.items()):
        if hasher_name in hasher_names:
          hashers.append(hasher_class())
  
      return hashers
docs: Retrieves instances for all the specified hashers.
  
      Args:
        hasher_names (list[str]): names of the hashers to retrieve.
  
      Returns:
        list[BaseHasher]: hashers.