Function JS_StructuredClone 

pub unsafe fn JS_StructuredClone(
    cx: *mut JSContext,
    v: HandleValue<'_>,
    vp: MutableHandleValue<'_>,
    optionalCallbacks: *const JSStructuredCloneCallbacks,
    closure: *mut c_void,
) -> bool

👎Deprecated:

Use wrappers2 instead