feat: add the in check

src/SchemaItem.ts

@@ -83,6 +83,17 @@ export default abstract class SchemaItem<Type = any> implements StandardSchemaV1
 		return this
 	}
 
+	/**
+	* make sure the value is one of the `values`
+	* @param values the values the item MUST contains
+	*/
+	@parceable()
+	public in(...values: Array<Type>): this {
+		this.addValidation((input) => values.includes(input))
+
+		return this
+	}
+
 	public attrs(...attributes: Array<string>) {
 		this.attributes.concat(attributes)
 		return this

src/items/enum.ts

@@ -18,7 +18,7 @@ export default class SchemaEnum<E extends EnumLike> extends SchemaItem<E[keyof E
 			this.type = 'number'
 		}
 
-		// test above === numebr
+		// test above === number
 		this.validations.push({
 			fn: (input) => Object.values(this.templateEnum).includes(input),
 			error: `Input is not part of ${templateEnum.constructor.name}`