Pfx.is_pfx
You're seeing just the macro
is_pfx, go back to
Pfx module for more information.
Guard that ensures a given pfx is actually valid.
- it is a
Pfx.t/0 struct, pfx.maxlen is a t:non-neg-integer/0,pfx.maxlen is >= 0, andbit_size(pfx.bits) <= pfx.maxlen