Display Featured Image floated to the left in single Posts for Genesis Framework Snippet

featured-image-single-posts-genesis-snippet.php

<?php
//* Display Featured Image floated to the left in single Posts.
add_action( 'genesis_entry_content', 'md_show_featured_image_single_posts', 9 );
function md_show_featured_image_single_posts() {
	if ( ! is_singular( array( 'post') )) {
		return;
	}

	$image_args = array(
		'size' => 'medium',
		'attr' => array(
			'class' => 'alignleft',
		),
	);

	genesis_image( $image_args );
}
?>