struct OpenHashMap(K, V = void, alias hasher = hashOf, string keyEqualPred = defaultKeyEqualPredOf!(K), alias Allocator = Mallocator.instance, bool borrowChecked = false, bool useSmallLinearSearch = true, bool usePrimeCapacity = false)
static immutable
static if(borrowChecked)
=
"cannot mutate this when it's borrowed";