usecrate::emacs_core::value::Value;/// Trait for types that hold GC-managed `Value` references.
////// Each runtime subsystem implements this to enumerate all `Value`s it holds,
/// so the collector can discover every live object reachable from explicit
/// runtime roots.
pubtraitGcTrace{/// Push all `Value` references held by `self` into `roots`.
fntrace_roots(&self, roots:&mutVec<Value>);}