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Hello.I am using Apple News API for creating articles and I wanted to attach to the request my custom fonts what's mentioned in the docs: https://developer.apple.com/documentation/apple_news/create_an_article - unfortunately without luck so far, I am getting error like:Apple News API error. (INVALID_DOCUMENT) Custom font (postscript name=...) not availableI've started wondering whether it really works that way, whether it's supported at all. I've found some 3 years old discussion that the only way of adding custom fonts was by asking Apple for doing that.Thanks for all hints.