Make negativePrompt optional in Swift CLI (#89)

pd95 · web-flow · commit c1fd82a96d64 · 2022-12-28T14:50:52.000-08:00
diff --git a/swift/StableDiffusionCLI/main.swift b/swift/StableDiffusionCLI/main.swift
@@ -20,7 +20,7 @@ struct StableDiffusionSample: ParsableCommand {
     var prompt: String
 
     @Option(help: "Input string negative prompt")
-    var negativePrompt: String
+    var negativePrompt: String = ""
 
     @Option(
         help: ArgumentHelp(
