This module is a Moose role which implements running a program in a pty
while being able to filter the data that goes into and out of it. This can
be used to alter the inputs and outputs of a terminal based program (as in
the "SYNOPSIS"), or to intercept the data going in or out to record it or
rebroadcast it (App::Ttyrec or App::Termcast, for instance).
This role is intended to be consumed by a class which implements its
callbacks as methods; for a simpler callback-based API, you may want to
use Term::Filter::Callback instead.