<?php foreach($filter->get() as $radio): ?>
<label class="asp_label my_custom_class" data-myattr="my custom attr">
<input type="radio" class="asp_radio" name="aspf[<?php echo $field_name; ?>]"
<?php echo $radio->default ? 'data-origvalue="1"' : ''; ?>
value="<?php echo esc_attr($radio->value); ?>"
<?php echo $radio->selected ? "checked='checked'" : ""; ?>/>
<?php echo esc_html($radio->label); ?>