CMB2 Select2 Dropdown of Ultimate Member user fields

cmb2_um_fields.php

global $ultimatemember;

$options = array();

$fields = $ultimatemember->builtin->all_user_fields('date,time,url');

foreach ($fields as $key => $value) {
	if ( isset($value['title']) ) {

		$options[$key] = $value['title'];

	}
	
}

$cmb->add_field( array(
	'name'		=> __( 'Fields', 'pp' ),
	'desc'		=> __( 'Select fields', 'pp' ),
	'id'		=> $prefix . 'fields',
	'type'		=> 'pw_multiselect',
	'options'	=> $options,
	
) );