pub trait PoolState {
// Required methods
fn expansion_enabled(&self) -> bool;
fn miss_count(&self) -> usize;
fn capacity(&self) -> usize;
fn len(&self) -> usize;
// Provided method
fn is_empty(&self) -> bool { ... }
}pub trait PoolState {
// Required methods
fn expansion_enabled(&self) -> bool;
fn miss_count(&self) -> usize;
fn capacity(&self) -> usize;
fn len(&self) -> usize;
// Provided method
fn is_empty(&self) -> bool { ... }
}