Hook um_login_form_button_one

um_login_form_button_one.php

<?php

/**
 * Hook: um_login_form_button_one
 *
 * Type: filter
 *
 * Description: Change the Login Form primary button text.
 *
 * @example https://github.com/ultimatemember/ultimatemember/blob/master/includes/core/um-actions-login.php#L358
 * @link    https://docs.ultimatemember.com/article/1166-umloginformbuttonone
 *
 * @package um\core
 * @see     um_add_submit_button_to_login()
 * @since   2.0
 * @version 3.0
 *
 * @param string $primary_btn_word Button text.
 * @param array  $args             Login Form arguments.
 *
 * @return string Button text.
 */
function my_login_form_button_one( $primary_btn_word, $args ) {
	// your code here.
	return $primary_btn_word;
}
add_filter( 'um_login_form_button_one', 'my_login_form_button_one', 10, 2 );