<p>One or more filters. The possible values are:</p> <ul> <li> <p> <code>attachment.resource-id</code> - The ID of the resource for the attachment.</p> </li> <li> <p> <code>attachment.resource-type</code> - The type of resource for the attachment. Valid values are <code>vpc</code> | <code>vpn</code> | <code>direct-connect-gateway</code> | <code>peering</code>.</p> </li> <li> <p> <code>attachment.transit-gateway-attachment-id</code> - The ID of the attachment.</p> </li> <li> <p> <code>is-blackhole</code> - Whether traffic matching the route is blocked (<code>true</code> | <code>false</code>).</p> </li> <li> <p> <code>prefix-list-id</code> - The ID of the prefix list.</p> </li> <li> <p> <code>prefix-list-owner-id</code> - The ID of the owner of the prefix list.</p> </li> <li> <p> <code>state</code> - The state of the prefix list reference (<code>pending</code> | <code>available</code> | <code>modifying</code> | <code>deleting</code>).</p> </li> </ul>