{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"///"}]}
    /// * `self_ty_span`           the span for the type being searched within (span of `Foo`)
    /// * `self_ty`:               the type to search within (`Foo`)
    /// * `expr_id`:               the [`hir::HirId`] of the expression composing the entire call