code: @Override
      public RevokeInvitationResult revokeInvitation(RevokeInvitationRequest request) {
          request = beforeClientExecution(request);
          return executeRevokeInvitation(request);
      }
docs: <p>
  Revokes an invitation and invalidates the enrollment URL.
  </p>
  
  @param revokeInvitationRequest
  @return Result of the RevokeInvitation operation returned by the service.
  @throws NotFoundException
  The resource is not found.
  @throws ConcurrentModificationException
  There is a concurrent modification of resources.
  @sample AmazonAlexaForBusiness.RevokeInvitation
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/alexaforbusiness-2017-11-09/RevokeInvitation"
  target="_top">AWS API Documentation</a>