{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"user_provided_sig:"}]}
    user_provided_sig: ty::CanonicalPolyFnSig<'tcx>,
pub struct ClosureTypeInfo<'tcx> {
    captures: &'tcx ty::List<&'tcx ty::CapturedPlace<'tcx>>,