Post Title';
		}

		return $defaults;
	}

	/**
	 * Get the canonical URL to use as a replacement.
	 *
	 * @return string|null
	 */
	public function get_url() {
		return Paper::get()->get_canonical() ? Paper::get()->get_canonical() : get_the_permalink( $this->args->ID );
	}

	/**
	 * Get the the post thumbnail to use as a replacement.
	 *
	 * @return string|null
	 */
	public function get_post_thumbnail() {
		if ( ! has_post_thumbnail( $this->args->ID ) ) {
			return '';
		}

		$image = wp_get_attachment_image_src( get_post_thumbnail_id( $this->args->ID ), 'full' );
		return ! empty( $image ) ? $image[0] : '';
	}
}