expose a Rust struct to Python using PyO3 that need a lifetime annotations ('a)

[AriBermeki]

I am trying to expose a Rust struct to Python using PyO3, but I need to remove the lifetime annotations ('a) while maintaining the original intent of the struct. Here is the original Rust struct:

/// A raw window type that contains fields to access
/// the HWND on Windows, gtk::ApplicationWindow on Linux and
/// NSView on macOS.
pub struct RawWindow<'a> {
  #[cfg(windows)]
  pub hwnd: isize,
  #[cfg(any(
    target_os = "linux",
    target_os = "dragonfly",
    target_os = "freebsd",
    target_os = "netbsd",
    target_os = "openbsd"
  ))]
  pub gtk_window: &'a gtk::ApplicationWindow,
  #[cfg(any(
    target_os = "linux",
    target_os = "dragonfly",
    target_os = "freebsd",
    target_os = "netbsd",
    target_os = "openbsd"
  ))]
  pub default_vbox: Option<&'a gtk::Box>,
  pub _marker: &'a PhantomData<()>,
}

Since PyO3 does not support borrowing references with lifetimes (as Python does not have Rust lifetimes), what is the best way to adapt this struct for PyO3 while keeping its functionality intact?

Thank you for your guidance!