#[doc(hidden)]trait RcInnerPtr {
// Required methods
fn weak_ref(&self) -> &Cell<usize>;
fn strong_ref(&self) -> &Cell<usize>;
// Provided methods
fn strong(&self) -> usize { ... }
fn inc_strong(&self) { ... }
fn dec_strong(&self) { ... }
fn weak(&self) -> usize { ... }
fn inc_weak(&self) { ... }
fn dec_weak(&self) { ... }
}