{"ast_node_type":"variable","tokens":[{"end":82,"kind":"keyword","start":0,"text":"let"}]}
    let update_mapper_decl = declare_offload_fn(&cx, mapper_update, mapper_fn_ty);
    let begin_mapper_decl = declare_offload_fn(&cx, mapper_begin, mapper_fn_ty);
    let end_mapper_decl = declare_offload_fn(&cx, mapper_end, mapper_fn_ty);