1class Movie
 2  def initialize(title:,  studio: Studio::Unknown, year_published: DateTime.now.year)
 3  end
 4end
 5
 6class MovieLibrary
 7  def add(movie)
 8  end
 9end
10
11class Studio
12  CastleRock = Object.new
13  Disney = Object.new
14  MiramaxFilms = Object.new
15  Pixar = Object.new
16  RegencyEnterprises = Object.new
17  Unknown = Object.new
18end