Using Block Lab in a Plugin

class-my-block-plugin.php

class My_Block_Plugin {
	/**
	 * Register any hooks that this component needs.
	 */
	public function __construct() {
		add_filter( 'block_lab_template_path', array( $this, 'template_path' ) );
	}

	/**
	 * Include the plugin's blocks folder in the template path.
	 */
	public function template_path() {
		return untrailingslashit( dirname( __FILE__ ) );
	}
}