proc size(self: PackedDataContainerRef): int64 {.
gcsafe, locks: 0, raises: [], tags: []
.}

method iterInit(self: PackedDataContainerRef; arg0: Array): Variant {.
gcsafe, locks: 0,
    base, raises: [], tags: []
.}

method iterGet(self: PackedDataContainerRef; arg0: Variant): Variant {.
gcsafe,
    locks: 0, base, raises: [], tags: []
.}

method iterNext(self: PackedDataContainerRef; arg0: Array): Variant {.
gcsafe, locks: 0,
    base, raises: [], tags: []
.}

method isDictionary(self: PackedDataContainerRef): bool {.
gcsafe, locks: 0, base,
    raises: [], tags: []
.}