Build failing due to parsing error

[devanshj]

$ cd packages/number
$ yarn build
[...]
🎁 error /workspace/sthir/packages/number/src/types.ts: Unexpected token, expected "?" (36:37)
🎁 error
🎁 error   34 |       : never :
🎁 error   35 |   T extends `0b${infer X}` ? Nb.ToNumber<A.Cast<S.Split<X, "">, Nb.Unknown>> :
🎁 error > 36 |   T extends `${infer X extends number}` ? X :
🎁 error      |                                      ^
🎁 error   37 |   `Error: Cannot parse expression '${T}'`
🎁 error   38 |
🎁 error   39 | type Test0 = A.Test<A.AreEqual<E<"5">, 5>>
[...]

cc @Andarist