configuration.rb

class Student
  class Config
    attr_accesor :name, :age, :iq
  end

  def Student.config(&block)
    @config = Student::Config.new
    yield block(@config)
    true
  end
end


Student.config do |configuration|
  configuration.name = "Elad"
  configuration.age = 12
  configuration.iq = 3
end