fix(flow): check for scope before providing store

examples/src/Basic/BasicOptionsAPI.vue

@@ -40,8 +40,9 @@ export default defineComponent({
     onNodeDragStop(e: FlowEvents['nodeDragStop']) {
       console.log('drag stop', e)
     },
-    onPaneReady({ fitView }: FlowEvents['paneReady']) {
+    onPaneReady(instance: FlowEvents['paneReady']) {
-      fitView({ padding: 0.1 })
+      instance.fitView()
+      this.instance = instance
     },
     onConnect(params: FlowEvents['connect']) {
       addEdge(params, this.elements)

package/src/composables/useVueFlow.ts

@@ -109,7 +109,8 @@ export default <NodeData = ElementData, EdgeData = ElementData>(
   }
 
   if (!vueFlow) throw new Error('vue flow store instance not found.')
-  provide(VueFlow, vueFlow)
+
+  if (scope) provide(VueFlow, vueFlow)
 
   return vueFlow
 }