From 929f03ff7c775c40995bc8fd010ebe57790b633f Mon Sep 17 00:00:00 2001
From: Arman Ozak <arman@armanozak.com>
Date: Tue, 8 Dec 2020 17:26:06 +0300
Subject: [PATCH] feat: add Options utility type

---
 .../packages/schematics/src/models/util.ts         | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/npm/ng-packs/packages/schematics/src/models/util.ts b/npm/ng-packs/packages/schematics/src/models/util.ts
index 5ff732ccfe..0588ed7d5b 100644
--- a/npm/ng-packs/packages/schematics/src/models/util.ts
+++ b/npm/ng-packs/packages/schematics/src/models/util.ts
@@ -1,2 +1,16 @@
 // Omissible (given keys will become optional)
 export type Omissible<T, K extends keyof T> = Partial<Pick<T, K>> & Omit<T, K>;
+
+// ExcludeKeys (keys will be excluded based on their type)
+type ExcludeKeys<Type, Excluded> = Exclude<
+  {
+    [Key in keyof Type]: Type[Key] extends Excluded ? never : Key;
+  }[keyof Type],
+  never
+>;
+
+// tslint:disable-next-line: ban-types
+type ExcludeMethods<Type> = Pick<Type, ExcludeKeys<Type, Function>>;
+
+// Options (methods will be omitted, given keys will become optional)
+export type Options<T, K extends keyof ExcludeMethods<T>> = Omissible<ExcludeMethods<T>, K>;