def choose_check
import cli@0.2.0.0/cli.bend as Cliimport Base
4758def choose_check(-A: Data, verdict: Maybe<&2, String>,
4759 keys: List<&2, String>, values: List<&2, A>,
4760 fields: List<&2, Field>, id: String) -> Dec(Maybe<&2, A>):
4761 match verdict:
4762 case None{}: choose_read(A, keys, values, field_find(fields, id))
4763 case Some{msg}: Fail{Bug{msg}}