private static function get_reusable_block_schema( $field_id ) {

		$list = require LLMS_PLUGIN_DIR . 'includes/schemas/llms-reusable-blocks.php';

		$definition = empty( $list[ $field_id ] ) ? array() : self::prepare_block_attrs( $list[ $field_id ] );

		/**
		 * Filters the result of a schema definition.
		 *
		 * This hook can be used to add definitions for custom (non-core) fields or to modify a core definition.
		 *
		 * @since 5.0.0
		 *
		 * @param array  $definition The schema definition.
		 * @param string $field_id   The field's identifier as found in the block schema list returned by LLMS_Form_Templates::get_reusable_block_schema().
		 */
		return apply_filters( 'llms_get_reusable_block_schema', $definition, $field_id );

	}