syntax_data: {"ast_node_type":"import","tokens":[{"end":97,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// This function is "shallow" because it may return `true` for a composite type whose fields
context_before:     ///
context_after:     /// are not `StructuralPartialEq`. For example, `[T; 4]` has structural equality regardless of `T`