Function CGPDFDocumentGetPage 

pub extern "C-unwind" fn CGPDFDocumentGetPage(
    document: Option<&CGPDFDocument>,
    page_number: usize,
) -> Option<CFRetained<CGPDFPage>>

👎Deprecated: renamed to CGPDFDocument::page

Available on crate features CGPDFDocument and CGPDFPage only.