from quart import current_app as app


@app.context_processor
async def example__utility_processor():
    """
    Usage:
    {{ format_price(100.33) }} -> $100.33
    """

    async def example__format_price(amount, currency='$'):
        return '{1}{0:.2f}'.format(amount, currency)

    return dict(format_price=example__format_price)