o3 0.20.1

shared-nothing primitives
Documentation 
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use std::marker;

/// A withdrawn value whose original identity retires unless restored.
pub struct Withdrawn<B, Tag = (), const ROOT: bool = true> {
    pub(in crate::depot::arena::slab) entry: B,
    pub(in crate::depot::arena::slab) tag: marker::PhantomData<fn() -> Tag>,
}