How durable is Afghanistan's relationship with China?

Afghanistan and China's relationship has come to the fore, ever since the United States withdrew from the country this past August.
As international humanitarian aid stopped flowing to Afghanistan, China had been one of the few to step in with - limited - pledges. And it is not clear how much Beijing will engage, given the ongoing security problem as ISIS-K steps up attacks to disrupt Taliban control. So how durable is this China-Afghanistan relationship?