Function CFURLCreateStringByReplacingPercentEscapesUsingEncoding 

pub unsafe extern "C-unwind" fn CFURLCreateStringByReplacingPercentEscapesUsingEncoding(
    allocator: Option<&CFAllocator>,
    orig_string: Option<&CFString>,
    chars_to_leave_escaped: Option<&CFString>,
    encoding: CFStringEncoding,
) -> Option<CFRetained<CFString>>

👎Deprecated: renamed to CFURL::new_string_by_replacing_percent_escapes_using_encoding

Available on crate features CFString and CFURL only.