feat(Merge Node): Overhaul, v3 (#9528)

Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>
Co-authored-by: Shireen Missi <94372015+ShireenMissi@users.noreply.github.com>

packages/nodes-base/nodes/Merge/v3/actions/versionDescription.ts

@@ -0,0 +1,23 @@
+/* eslint-disable n8n-nodes-base/node-filename-against-convention */
+import type { INodeTypeDescription } from 'n8n-workflow';
+
+import * as mode from './mode';
+
+import { configuredInputs } from '../helpers/utils';
+
+export const versionDescription: INodeTypeDescription = {
+	displayName: 'Merge',
+	name: 'merge',
+	group: ['transform'],
+	description: 'Merges data of multiple streams once data from both is available',
+	version: [3],
+	defaults: {
+		name: 'Merge',
+	},
+	inputs: `={{(${configuredInputs})($parameter)}}`,
+	outputs: ['main'],
+	// If mode is chooseBranch data from both branches is required
+	// to continue, else data from any input suffices
+	requiredInputs: '={{ $parameter["mode"] === "chooseBranch" ? [0, 1] : 1 }}',
+	properties: [...mode.description],
+};