https://eel.is/c++draft/format#formatter.spec-2.3 is specified like a full specialization, but this makes no sense for `_BitInt` since you would want to handle bit-precise integers in bulk.
https://eel.is/c++draft/format#formatter.spec-2.3 is specified like a full specialization, but this makes no sense for
_BitIntsince you would want to handle bit-precise integers in bulk.