def arg_alias_issues
import cli@0.2.0.0/cli.bend as Cliimport Base
1847def arg_alias_issues(aliases: List<&2, String>, +at: String,
1848 +seen: List<&2, Seen>, +version: Bool) -> List<&2, Problem>:
1849 match aliases:
1850 case Nil{}: Nil{}
1851 case +name <> tail:
1852 List.append(&2, Problem,
1853 arg_alias_issue(name, at, seen, version),
1854 arg_alias_issues(tail, at, SeenArgAlias{name} <> seen, version))