def tools.back
import ezx@1.11.0.0/src/ws/up.bend as Upimport Base
import ezx@1.11.0.0/src/ledger/manifest.bend as M
90# every tool of a ledger, after the upgrade
91def tools.back(ts: List<&2, M.Tool>, +js: List<&2, M.Tool>) -> List<&2, M.Tool>:
92 match ts:
93 case []:
94 []
95 case +hd <> tl:
96 tool.back(hd, js) <> tools.back(tl, js)