Simple function based on queried page

<?php
$term = get_queried_object();
$type = $term->post_type;
if ( $type === 'event' ) {
	if ( has_post_thumbnail() ) {
		$size = apply_filters( 'twstudio_default_thumbnail_size', 'large' );
		the_post_thumbnail( $size, array( 'class' => 'featured-image' ) );
	}
}
?>