syntax_data: {"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// of g (call it g1), calling remove_mark will result in the SyntaxContext for the
context_before:     /// and we have a SyntaxContext that is referring to something declared by an invocation
context_after:     /// invocation of f that created g1.