...

compiler/NubLang/Syntax/Module.cs

@@ -48,4 +48,13 @@ public sealed class Module
             .Where(x => x.Exported || includePrivate)
             .ToList();
     }
+
+    public List<string> Imports()
+    {
+        return _definitions
+            .OfType<ImportSyntax>()
+            .Select(x => x.NameToken.Value)
+            .Distinct()
+            .ToList();
+    }
 }