如何将Rc<RefCell<dyn T>>传递给需要&dyn T的fn？

use std::cell::RefCell;
use std::rc::Rc;

trait T {
    fn foo(&self);
}

struct MyStruct;

impl T for MyStruct {
    fn foo(&self) {
        println!("Hello from MyStruct!");
    }
}

fn process_t(t: &dyn T) {
    t.foo();
}

fn main() {
    let my_struct = Rc::new(RefCell::new(MyStruct));

    // Borrow the RefCell and convert it to &dyn T
    let borrowed_t: &dyn T = &*my_struct.borrow();

    // Pass the borrowed_t to the function
    process_t(borrowed_t);
}