{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"///"}]}
    /// environment. In this case, if we can show that `'0 == 'a`,
    /// there are bounds like `where <T as Foo<'a>>::Item: 'b` in the
    /// and that `'b: '1`, then we know that the clause is