{"ast_node_type":"import","tokens":[{"end":43,"kind":"keyword","start":0,"text":"use"}]}
use rustc_infer::traits::query::NoSolution;
use rustc_infer::infer::{self, DefineOpaqueTypes, InferOk, RegionVariableOrigin};
use rustc_middle::ty::adjustment::{Adjust, Adjustment, AllowTwoPhase};