Method delete

packages/firebase-firestore/index.ios.ts:1163–1165

(documentRef: DocumentReference)

	}

	delete(documentRef: DocumentReference): WriteBatch {
		return WriteBatch.fromNative(this.native.deleteDocument(documentRef.native));
	}

	set(documentRef: DocumentReference, data: DocumentData, options?: SetOptions): WriteBatch {
		if (options) {