$fieldset->addField('example_text_field', 'text', array( 'label' => 'Example Text Field', 'name' => 'example_text_field', ));
$fieldset->addField('example_select_field', 'select', array( 'label' => 'Example Select Field', 'name' => 'example_select_field', 'values' => array( '1' => 'Option 1', '2' => 'Option 2', '3' => 'Option 3', ), ));This code creates a form element with the label "Example Select Field" and a name of "example_select_field." The type of the element is "select," which creates a dropdown select field. The "values" array contains the options that will appear in the select field. Package Library: The Varien_Data_Form_Element_Abstract __construct function is part of the Magento Framework, which is a PHP library developed by Magento, Inc. The Magento Framework is used to build e-commerce websites and applications on top of the Magento platform. The library includes a range of tools and functions for developers to build custom modules and extensions that extend the functionality of the platform.