// Read the frame data.
			pc, err := binary.ReadUvarint(r)
			if err != nil {
				return fmt.Errorf("reading frame %d's PC for stack %d: %w", i+1, id, err)
			}
			funcID, err := binary.ReadUvarint(r)
			if err != nil {
				return fmt.Errorf("reading frame %d's funcID for stack %d: %w", i+1, id, err)
			}
			fileID, err := binary.ReadUvarint(r)
			if err != nil {

	// for the batch.
	gen, err := binary.ReadUvarint(r)
	if err != nil {
		return batch{}, gen, fmt.Errorf("error reading batch gen: %w", err)
	}
	m, err := binary.ReadUvarint(r)
	if err != nil {
		return batch{}, gen, fmt.Errorf("error reading batch M ID: %w", err)
	}
	ts, err := binary.ReadUvarint(r)
	if err != nil {
		return batch{}, gen, fmt.Errorf("error reading batch timestamp: %w", err)

func (r *Reader) readArgs(n int) ([]uint64, error) {
	var args []uint64
	for i := 0; i < n; i++ {
		val, err := binary.ReadUvarint(r.r)
		if err != nil {
			return nil, err
		}
		args = append(args, val)
	}
	return args, nil
}

func (r *Reader) readData() ([]byte, error) {
	len, err := binary.ReadUvarint(r.r)
	if err != nil {
		return nil, err
	}
	var data []byte
	for i := 0; i < int(len); i++ {

    private
    suspend fun ReadContext.readVariants(factory: CalculatedValueContainerFactory): List<LocalVariantMetadata> {
        return readList {
            readVariant(factory)
        }
    }

    private
    suspend fun ReadContext.readVariant(factory: CalculatedValueContainerFactory): LocalVariantMetadata {
        val variantName = readString()
        val identifier = readNonNull<VariantResolveMetadata.Identifier>()

                }
            }

            // we pass a cloned model, so that resolving the parent version does not affect the returned model
            ModelData parentData = readParent(model, currentData.source(), request, problems);

            if (parentData == null) {
                currentData = superData;
            } else if (!parentIds.add(parentData.id())) {

		{"MaxVarintLen32", Const, 0},
		{"MaxVarintLen64", Const, 0},
		{"NativeEndian", Var, 21},
		{"PutUvarint", Func, 0},
		{"PutVarint", Func, 0},
		{"Read", Func, 0},
		{"ReadUvarint", Func, 0},
		{"ReadVarint", Func, 0},
		{"Size", Func, 0},
		{"Uvarint", Func, 0},
		{"Varint", Func, 0},
		{"Write", Func, 0},
	},
	"encoding/csv": {
		{"(*ParseError).Error", Method, 0},

            // we pass a cloned model, so that resolving the parent version does not affect the returned model
            ModelData parentData = readParent(new Model(modelv4), currentData.getSource(), request, problems);

            if (parentData == null) {
                currentData = superData;
            } else if (!parentIds.add(parentData.getId())) {