{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"///"}]}
    /// external interface of the method can be determined from the trait, it's ok not to decide.
    /// same trait, but we don't know which impl to use. In this case, since in all cases the
    /// We can basically just collapse all of the probes for various impls into one where-clause