module HighLine::BuiltinStyles
module HighLine::BuiltinStyles::ClassMethods
module HighLine::CustomErrors
module HighLine::StringExtensions
module HighLine::Wrapper
module IOConsoleCompatible
module Kernel
class File
class HighLine
class HighLine::ColorScheme
class HighLine::CustomErrors::ExplainableError
class HighLine::CustomErrors::NoAutoCompleteMatch
class HighLine::CustomErrors::NoConfirmationQuestionError
class HighLine::CustomErrors::NotInRangeQuestionError
class HighLine::CustomErrors::NotValidQuestionError
class HighLine::CustomErrors::QuestionError
class HighLine::List
class HighLine::ListRenderer
class HighLine::Menu
class HighLine::Menu::Item
class HighLine::Paginator
class HighLine::Question
class HighLine::Question::AnswerConverter
class HighLine::QuestionAsker
class HighLine::SampleColorScheme
class HighLine::Simulate
class HighLine::Statement
class HighLine::String
class HighLine::Style
class HighLine::TemplateRenderer
class HighLine::Terminal
class HighLine::Terminal::IOConsole
class HighLine::Terminal::NCurses
class HighLine::Terminal::UnixStty
class IO
class Object
class String
class StringIO
class Tempfile
highline
3.1.2
Invalid Question error
def explanation_key :not_valid end