How can clear ram of iPhone 6s while home button is dead?

My iPhone's home button is dead and I'm working with assistive touch option. But I can't clear ram because of the dead home button. Is there any other way of clearing ram without using the home button?

Why do you need to clear RAM?

iOS automatically frees up RAM when it needs to, don't forget that unused RAM is wasted RAM, you want applications to be using RAM.

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