
[;1m  mp()[0m

  Opaque data type containing a compiled regular expression.

  [;;4mmp/0[0m is guaranteed to be a tuple() having the atom [;;4mre_pattern[0m
  as its first element, to allow for matching in guards. The arity
  of the tuple or the content of the other fields can change in
  future Erlang/OTP releases.
