Unable to add handlebars code block

[girl10011]

Hi guys.

/**
 * ## Class X
 * Usage:
 *
 * ```handlebars
 * {{custom-component
 *    text=options.text
 * }}
 * ```
 *
 * @class X
 * @public
 */

This code is transformed into an empty code block as a result.
Do you have any ideas?

Thanks.