Mac.is_universal_mac
You're seeing just the macro
is_universal_mac
, go back to Mac module for more information.
Specs
checks to see if a value is a local mac address, by convention it means it has been assigned by the hardware manufacturer
usable in guards.
iex> Mac.is_universal_mac({0xF2, 0, 0, 1, 1, 1})
false
iex> Mac.is_universal_mac({0xF0, 0, 0, 1, 1, 1})
true