Polylang language switcher with slugs, uses Genesis

functions.php

//* Add language switcher polylang with slug inspite of names
//* Position header-right

add_action( 'genesis_header_right', 'custom_language_switcher');
function custom_language_switcher() {
	echo '<ul class="custom-lang-switcher">';
	pll_the_languages(array('show_names'=>1,'display_names_as'=>'slug'));
	echo '</ul>';
}

style.scss

ul.custom-lang-switcher {
	display: inline-block;
	border-right: 1px solid;
	font-size: $font-size-S;
	li {
		float: left;
		margin-right: 15px;
		border-left: 1px solid;
		padding-left: 15px;
	}
}