You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: easter-egg.rb
    path of file: ./repos/ruby/lib/irb
    
    the code of the file until where you have to start completion: require "reline"

module IRB
  class << self
    class Vec
      def initialize(x, y, z)
        @x, @y, @z = x, y, z
      end

  
    
      def init_ruby_model
        cap_vertices    = (0..5).map {|i| Vec.new(*Complex.polar(1,  i        * Math::PI / 3).rect, 1) }
        middle_vertices = (0..5).map {|i| Vec.new(*Complex.polar(2, (i + 0.5) * Math::PI / 3).rect, 0) }
        bottom_vertex   = Vec.new(0, 0, -2)

        faces = [cap_vertices]
        6.times do |j|
          i = j-1
          faces << [cap_vertices[i], middle_vertices[i], cap_vertices[j]]
          faces << [cap_vertices[j], middle_vertices[i], middle_vertices[j]]
          faces << [middle_vertices[i], bottom_vertex, middle_vertices[j]]
        end

        faces
      end