Kernel.module_eval do

  # BEWARE: _self is currently not accepted in perform_later jobs due to serialization errors

  # The cases of 'id' and '_self' both handle instances, with the difference 
  # being that 'id' works for objects that have a database record, while '_self'
  # works for non database supported instanes, such as an Exporter instance.

  def new_job(_method)

    if instance_methods(false).include? _method
      define_method "#{_method}_job" do |_self = nil|
        Eitil::SingleMethodJob.perform_later(_class: self.class.to_s, _method: _method.to_s, id: safe_send(:id), _self: self.to_json)
      end

    elsif singleton_methods(false).include? _method
      define_singleton_method "#{_method}_job" do
        Eitil::SingleMethodJob.perform_later(_class: to_s, _method: _method.to_s)
      end
    end  

  end

end