{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"FnMutError,"}]}
    FnMutError, FnMutReturnTypeErr, GenericDoesNotLiveLongEnough, LifetimeOutliveErr,
use crate::session_diagnostics::{
    LifetimeReturnCategoryErr, RequireStaticErr, VarHereDenote,