return StrToRStream.getMult(node, init) * filter.getPopInt() + peekBufferSize;
return StrToRStream.getMult(node, init) * filter.getPopInt() + remaining[0];
    public int getBufferSize(FlatNode prev, boolean init)    {        return StrToRStream.getMult(node, init) * filter.getPopInt() + peekBufferSize;    }