Method increment

packages/firebase-firestore/index.ios.ts:997–1003

(n: number)

	}

	static increment(n: number): FieldValue {
		const useDouble = n % 1 === 0;
		if (useDouble) {
			return FieldValue.fromNative(FIRFieldValue.fieldValueForDoubleIncrement(n));
		}
		return FieldValue.fromNative(FIRFieldValue.fieldValueForIntegerIncrement(n));
	}

	static serverTimestamp(): FieldValue {
		return FieldValue.fromNative(FIRFieldValue.fieldValueForServerTimestamp());