func (c *client) Block(ctx context.Context, ref torus.BlockRef) ([]byte, error) {
	resp, err := c.handler.Block(ctx, &models.BlockRequest{
		BlockRef: ref.ToProto(),
	})
	if err != nil {
		return nil, err
	}
	return resp.Data, nil
}
func (c *client) PutBlock(ctx context.Context, ref torus.BlockRef, data []byte) error {
	_, err := c.handler.PutBlock(ctx, &models.PutBlockRequest{
		Refs: []*models.BlockRef{
			ref.ToProto(),
		},
		Blocks: [][]byte{
			data,
		},
	})
	return err
}