syntax_data: {"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// and new `VarianceDiagInfo`s when our variance changes.
context_before:     /// Mirrors `Variance::xform` - used to 'combine' the existing
context_after:     pub fn xform(self, other: VarianceDiagInfo<I>) -> VarianceDiagInfo<I> {