{"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"ScalarPair(Scalar<Prov>,"}]}
    ScalarPair(Scalar<Prov>, Scalar<Prov>),
    /// `Scalar::Initialized`).
    /// A value of fully uninitialized memory. Can have arbitrary size and layout, but must be sized.