mistake on Mutations page?

[ofer-pd]

In the first code example under Custom middleware example, in the first function:

def lowercase_middleware(resolver, obj, info, **args):
    if iscoroutinefunction(resolver):
        return lowercase_middleware_async(resolver, obj, info, **args)

    value = resolver(obj, info, **args)
    if is_awaitable(value):
        return lowercase_awaitable(value)

    return lowercase_value(await value)

Is the await value on the last line a mistake? You can't say await in a regular function, right?