require "highline/import"
adds shortcut methods to
Kernel, making {HighLine#agree}, {HighLine#ask},
{HighLine#choose} and {HighLine#say} globally available. This is handy for
quick and dirty input and output. These methods use HighLine.default_instance
which is initialized to use $stdin
and $stdout
(you are free to change this). Otherwise, these methods are identical to
their {HighLine} counterparts, see that class for detailed explanations.