How to use the graphql-transformer-core.SyncUtils.syncDataSourceConfig function in graphql-transformer-core

public makeDynamoDBDataSource(tableId: string, iamRoleLogicalID: string, typeName: string, isSyncEnabled: boolean = false) {
    return new AppSync.DataSource({
      ApiId: Fn.GetAtt(ResourceConstants.RESOURCES.GraphQLAPILogicalID, 'ApiId'),
      Name: tableId,
      Type: 'AMAZON_DYNAMODB',
      ServiceRoleArn: Fn.GetAtt(iamRoleLogicalID, 'Arn'),
      DynamoDBConfig: {
        AwsRegion: Refs.Region,
        TableName: this.dynamoDBTableName(typeName),
        ...(isSyncEnabled && {
          DeltaSyncConfig: SyncUtils.syncDataSourceConfig(),
          Versioned: true,
        }),
      },
    }).dependsOn([iamRoleLogicalID]);
  }