functions.php

<?php

/**
 * Register widget areas.
 *
 * @uses genesis_register_widget_area()
 *
 * @since 1.0.0
 */
add_action( 'widgets_init', function () {

	$widget_areas = [
		[
			'id'          => 'example-widget-area',
			'name'        => __( 'Example Widget Area', 'generico' ),
			'description' => __( 'This is an example widget area, it\'s not used for anything in particular.', 'generico' ),
		],
		[
			'id'          => 'another-widget-area',
			'name'        => __( 'Another Widget Area', 'generico' ),
			'description' => __( 'This is another example widget area, it\'s not used for anything in particular.', 'generico' ),
		]
	];

	array_map( 'genesis_register_widget_area', $widget_areas );

}, 5 );