code: @Override
      public ListVPCAssociationAuthorizationsResult listVPCAssociationAuthorizations(ListVPCAssociationAuthorizationsRequest request) {
          request = beforeClientExecution(request);
          return executeListVPCAssociationAuthorizations(request);
      }
docs: <p>
  Gets a list of the VPCs that were created by other accounts and that can be associated with a specified hosted
  zone because you've submitted one or more <code>CreateVPCAssociationAuthorization</code> requests.
  </p>
  <p>
  The response includes a <code>VPCs</code> element with a <code>VPC</code> child element for each VPC that can be
  associated with the hosted zone.
  </p>
  
  @param listVPCAssociationAuthorizationsRequest
  A complex type that contains information about that can be associated with your hosted zone.
  @return Result of the ListVPCAssociationAuthorizations operation returned by the service.
  @throws NoSuchHostedZoneException
  No hosted zone exists with the ID that you specified.
  @throws InvalidInputException
  The input is not valid.
  @throws InvalidPaginationTokenException
  The value that you specified to get the second or subsequent page of results is invalid.
  @sample AmazonRoute53.ListVPCAssociationAuthorizations
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/route53-2013-04-01/ListVPCAssociationAuthorizations"
  target="_top">AWS API Documentation</a>