Retrieve a fixed locale suitable for byte-based operations
namespace HH\Lib\Locale; function bytes(): Locale;
This is similar to the "C" locale, also known as the "POSIX" or "en_US_POSIX" locale; it does not vary based on user/environment/machine settings.
It differs from the real "C" locale in that it is usable on strings that
contain null bytes; for example,
will return 7, instead of 3. The behavior is equivalent if the strings