template TokenIdType(alias staticTokens, alias dynamicTokens,
    alias possibleDefaultTokens)
{
    immutable tokenCount = staticTokens.length + dynamicTokens.length
        + possibleDefaultTokens.length + 1;
    static if (tokenCount <= ubyte.max)
        alias TokenIdType = ubyte;
    else static if (tokenCount <= ushort.max)
        alias TokenIdType = ushort;
    else static if (tokenCount <= uint.max)
        alias TokenIdType = uint;
    else
        static assert (false, "The number of tokens must be less than uint.max");
}