{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"///"}]}
/// Const is valid for all cases and means that we don't compute derivatives wrt. this output.
/// Dual(Only) is valid in forward-mode AD for scalar float returns (f16/f32/...).
/// That usually means we have a &mut or *mut T output and compute derivatives wrt. that arg,