title: How can I reference a resource from other region in AWS CDK?
body: <p>I have some cases need to reference resources from other region or account when using CDK. Some cases like:</p>
  <pre><code>ec2.SecurityGroup.fromSecurityGroupId(
  ec2.Subnet.fromSubnetId(
  ...
  </code></pre>
  <p>I above static API, none of them provide a <code>region</code>/<code>account</code> property. How can I reference the construct from other regions via CDK?</p>