def col_strategy
import cswap-bend-cli@0.1.0.0/profview.bend as Profviewimport Base
131def col_strategy(+rs: List<&2, Row>) -> List<&2, String>:
132 match rs:
133 case Nil{}:
134 []
135 case Con{Row{m, n, s, t, ms, c, i, src}, t2}:
136 s <> col_strategy(t2)