From ed2f8fe2b89d0688fa6b378a54c58b4288fb0f65 Mon Sep 17 00:00:00 2001
From: Patrick Tasse <patrick.tasse@ericsson.com>
Date: Mon, 27 Sep 2021 10:18:29 -0400
Subject: [PATCH] Make time graph state label optional

Not all time graph states have a label. Make the variable optional
instead of requiring users to put an empty string.

Change-Id: I980917cfb0d6c761e78905bc5bfef5ee3480da86
Signed-off-by: Patrick Tasse <patrick.tasse@ericsson.com>
---
 timeline-chart/src/time-graph-model.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/timeline-chart/src/time-graph-model.ts b/timeline-chart/src/time-graph-model.ts
index 0dd2cba..68e7bcd 100644
--- a/timeline-chart/src/time-graph-model.ts
+++ b/timeline-chart/src/time-graph-model.ts
@@ -28,7 +28,7 @@ export namespace TimelineChart {
     export interface TimeGraphState {
         readonly id: string
         readonly range: TimeGraphRange
-        readonly label: string
+        readonly label?: string
         selected?: boolean
         readonly data?: { [key: string]: any }
     }