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<?php
//* Do NOT include the opening php tag


add_action ( 'genesis_entry_header', 'odg_featured_image', 15 ); // '5' before title // '15' after title
function odg_featured_image() {
 
	if ( !is_singular( 'page' ) || !has_post_thumbnail() )  // 'post' // 'page' // or blank for both
		return;
 
	echo '<div class="featured-image">'; // set your container class
	genesis_image( array( 'size' => 'image_size', 'attr' => array( 'class' => 'featured' ) ) );  // set your img class if needed
	echo '</div>';
 
}