gistfile1.txt

            var trust : Unmanaged<SecTrust>?
            let status : OSStatus = SecTrustCreateWithCertificates(nil, nil, &trust)
            
            let certificate = SecTrustGetCertificateAtIndex(trust?.takeUnretainedValue(), 0)
            let serverCertData = SecCertificateCopyData(certificate).takeUnretainedValue()
/*
error: cannot convert the expression's type 'CFData' to type '$T6'
            let serverCertData = SecCertificateCopyData(certificate).takeUnretainedValue()
                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
*/