What's going on with this Typescript code?
type TupleOfLength<
        T,
        L extends number,
        R extends T[] = [],
> = R['length'] extends L ? R : TupleOfLength<T, L, [...R, T]>;
system
is tipscript code ke saath kya ho rahaa he?
tip tupleoflength <
        tii,
        el sankhya badhaata he,
        R kaa vistaar t [] = [],
> = aar ['lambaai'] el kaa vistaar karata he?R: tupleoflength <t, l, [... r, t]>;
user
tip tupaloflath ek tapal kaa utpaadan karata he jisamen tatv tii doharaaya el samay hota he, jise aar ke rup main sangrahit kiya jaataa he kyonki yah punaravarti rup se tapal banaata he.
assistant
<|system|>
</s>
<|user|>
is tipscript code ke saath kya ho rahaa he?
tip tupleoflength <
        tii,
        el sankhya badhaata he,
        R kaa vistaar t [] = [],
> = aar ['lambaai'] el kaa vistaar karata he?R: tupleoflength <t, l, [... r, t]>;</s>
<|assistant|>
tip tupaloflath ek tapal kaa utpaadan karata he jisamen tatv tii doharaaya el samay hota he, jise aar ke rup main sangrahit kiya jaataa he kyonki yah punaravarti rup se tapal banaata he.</s>
