class ViewModel
  def initialize(klass)
    @klass = klass
  end

  private

  attr_accessor :klass

  def method_missing(method_sym, *arguments, &block)
    klass.send(method_sym, *arguments, &block)
  end

  def respond_to?(method_sym)
    return true if methods.include?(method_sym)
    return true if klass.methods.include?(method_sym)
    false
  end

  def methods
    self.class.instance_methods + klass.methods
  end
end