Function Render_Region (p_region In apex_plugin.t_region
                            ,p_plugin In apex_plugin.t_plugin
                            ,p_is_printer_friendly In Boolean 
) Return apex_plugin.t_region_render_result Is
  l_result           apex_plugin.t_region_render_result;
 
Begin
  
  ...
    
  apex_javascript.add_library (p_name      => 'script'
                              ,p_directory => p_plugin.file_prefix
                              ,p_version   => null);

  apex_javascript.add_inline_code('var ajaxIdentifier="' || apex_plugin.get_ajax_identifier || '";');
  
  Return Null;

End;

Function AJAX_Region (p_region In apex_plugin.t_region
                          ,p_plugin In apex_plugin.t_plugin
) Return apex_plugin.t_region_ajax_result Is
Begin

...

End;