code: func (entries Entries) get(key uint64) Entry {
  	i := entries.search(key)
  	if i == len(entries) {
  		return nil
  	}
  
  	if entries[i].Key() == key {
  		return entries[i]
  	}
  
  	return nil
  }
docs: // get will perform a lookup over this list of entries
  // and return an Entry if it exists.  Returns nil if the
  // entry does not exist.