another import fix

Author: njlynch

packages/@aws-cdk/aws-lambda-event-sources/lib/kafka.ts

@@ -5,12 +5,9 @@ import * as lambda from '@aws-cdk/aws-lambda';
 import * as msk from '@aws-cdk/aws-msk';
 import * as secretsmanager from '@aws-cdk/aws-secretsmanager';
 import { Stack } from '@aws-cdk/core';
+import { Construct } from 'constructs';
 import { StreamEventSource, StreamEventSourceProps } from './stream';
 
-// keep this import separate from other imports to reduce chance for merge conflicts with v2-main
-// eslint-disable-next-line no-duplicate-imports, import/order
-import { Construct } from '@aws-cdk/core';
-
 /**
  * Properties for a Kafka event source
  */
@@ -147,7 +144,7 @@ export class SelfManagedKafkaEventSource extends StreamEventSource {
   }
 
   public bind(target: lambda.IFunction) {
-    if (!Construct.isConstruct(target)) { throw new Error('Function is not a construct. Unexpected error.'); }
+    if (!(target instanceof Construct)) { throw new Error('Function is not a construct. Unexpected error.'); }
     target.addEventSourceMapping(
       this.mappingId(target),
       this.enrichMappingOptions({