jogger_5.rb

class Jogger
  module NamedTraversals

    # Traverse to somebody's woman friends
    def self.friends(current_traversal, gender)
      t = current_traversal.in(:friends)
      t = t.filter(gender: gender)
    end

    # Group and sort
    def self.top_list(current_traversal, type)
      t = current_traversal.out(type)
      t = t.filter(type: 'Movie')
      t = t.group_count{ |v| v }
    end
  end
end