{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"///"}]}
    /// pat ) pat`), we need to keep track of the matchers we are descending into. This stack does
    /// When matching against matchers with nested delimited submatchers (e.g., `pat ( pat ( .. )
    /// that where the bottom of the stack is the outermost matcher.