code: func (yfast *YFastTrie) Delete(keys ...uint64) Entries {
  	entries := make(Entries, 0, len(keys))
  	for _, key := range keys {
  		entries = append(entries, yfast.delete(key))
  	}
  
  	return entries
  }
docs: // Delete will delete the provided keys from the y-fast trie
  // and return a list of entries that were deleted.