code: func (yfast *YFastTrie) Get(key uint64) Entry {
  	entry := yfast.get(key)
  	if entry == nil {
  		return nil
  	}
  
  	return entry
  }
docs: // Get will look for the provided key in the y-fast trie and return
  // the associated value if it is found.  If it is not found, this
  // method returns nil.