git clone https://github.com/mbigras/kashmir
cd kashmir/
git co a90f15d6c44564dde644e26ae848374b68a09273
bundle install
ruby --version
# ruby 2.4.2p198 (2017-09-14 revision 59899) [x86_64-darwin16]
bundle exec ruby <<'EOF'
require 'kashmir'
class Person
  include Kashmir
  
  def initialize(name, age)
    @name = name
    @age = age
  end
  
  representations do
    rep :name
    rep :age
  end
end
p Person.new('Netto Farah', 26).represent([:name, :age])
EOF
# {:name=>"Netto Farah", :age=>26}