Remove unused types and format files

Author: eriicafes

src/arg.ts

@@ -1,36 +1,41 @@
-import { KnownKey, MapUnion } from "./types"
+import { KnownKey, MapUnion } from "./types";
 
-type ArgType = "required" | "optional"
+type ArgType = "required" | "optional";
 
-type ArgTypeToValue<T extends ArgType> = MapUnion<T, {
-    required: string,
-    optional: string | undefined,
-}>[T]
+type ArgTypeToValue<T extends ArgType> = MapUnion<
+  T,
+  {
+    required: string;
+    optional: string | undefined;
+  }
+>[T];
 
 export type ParsedArgs<Args extends Record<string, Arg>> = {
-    [K in keyof Args as KnownKey<K>]: Args[K] extends Arg<infer T> ? ArgTypeToValue<T> : never
-}
+  [K in keyof Args as KnownKey<K>]: Args[K] extends Arg<infer T>
+    ? ArgTypeToValue<T>
+    : never;
+};
 
 export class Arg<T extends ArgType = ArgType> {
-    public constructor(private _type: T) { }
-
-    public optional(): Arg<"optional"> {
-        this._type = "optional" as T
-        return this as Arg<"optional">
-    }
-
-    public static toObject(arg: Arg) {
-        return {
-            type: arg._type,
-        }
-    }
-
-    public static toString(arg: Arg, name: string) {
-        if (arg._type === "required") return `<${name}>`
-        else return `[${name}]`
-    }
+  public constructor(private _type: T) {}
+
+  public optional(): Arg<"optional"> {
+    this._type = "optional" as T;
+    return this as Arg<"optional">;
+  }
+
+  public static toObject(arg: Arg) {
+    return {
+      type: arg._type,
+    };
+  }
+
+  public static toString(arg: Arg, name: string) {
+    if (arg._type === "required") return `<${name}>`;
+    else return `[${name}]`;
+  }
 }
 
 export function arg() {
-    return new Arg("required")
+  return new Arg("required");
 }