const GetOrPutResult = Unmanaged.GetOrPutResult;

getOrPut variants return this structure, with pointers to the backing store and a flag to indicate whether an existing entry was found. Modifying the key is allowed only if it does not change the hash. Modifying the value is allowed. Entry pointers become invalid whenever this ArrayHashMap is modified, unless ensureTotalCapacity/ensureUnusedCapacity was previously used.