Constant CONTEXT_RULE

pub const CONTEXT_RULE: fn(&Packed<ContextElem>, &mut Engine<'_>, StyleChain<'_>) -> Result<Content, EcoVec<SourceDiagnostic>> = _; // {<{closure@typst::foundations::CONTEXT_RULE::{closure#0}} as std::ops::FnOnce<(&typst::foundations::Packed<typst::foundations::ContextElem>, &mut typst::engine::Engine<'_>, typst::foundations::StyleChain<'_>)>>::call_once as for<'a, 'b, 'c, 'd> fn(&'a typst::foundations::Packed<typst::foundations::ContextElem>, &'b mut typst::engine::Engine<'c>, typst::foundations::StyleChain<'d>) -> std::result::Result<typst::foundations::Content, ecow::EcoVec<typst::diag::SourceDiagnostic>>}