Args.strategy_err: def of cswap-bend-cli@0.1.0.0
Import: import cswap-bend-cli@0.1.0.0/args.bend as Args
Lines 167-172 of cswap-bend-cli@0.1.0.0/args.bend: https://jend.leeeet.dev/read.txt?path=cswap-bend-cli@0.1.0.0/args.bend&start_line=167&end_line=172

import Base

def strategy_err(m: Maybe<&2, String>) -> String:
  match m:
    case None{}:
      ""
    case Some{+v}:
      err_if(Bool.not(has_str(v, ["best", "next-available"])), "argument --strategy: invalid choice: '" ++ v ++ "' (choose from 'best', 'next-available')")

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.not
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.append
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/args.bend&name=err_if
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/args.bend&name=has_str