syntax_data: {"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// In most cases, if the pattern recursively contains a `ref mut` binding, we find the inner
context_before:     ///
context_after:     /// pattern's scrutinee by calling `DerefMut::deref_mut`, and otherwise we call `Deref::deref`.