code: @Override
      public ClusterSecurityGroup revokeClusterSecurityGroupIngress(RevokeClusterSecurityGroupIngressRequest request) {
          request = beforeClientExecution(request);
          return executeRevokeClusterSecurityGroupIngress(request);
      }
docs: <p>
  Revokes an ingress rule in an Amazon Redshift security group for a previously authorized IP range or Amazon EC2
  security group. To add an ingress rule, see <a>AuthorizeClusterSecurityGroupIngress</a>. For information about
  managing security groups, go to <a
  href="https://docs.aws.amazon.com/redshift/latest/mgmt/working-with-security-groups.html">Amazon Redshift Cluster
  Security Groups</a> in the <i>Amazon Redshift Cluster Management Guide</i>.
  </p>
  
  @param revokeClusterSecurityGroupIngressRequest
  @return Result of the RevokeClusterSecurityGroupIngress operation returned by the service.
  @throws ClusterSecurityGroupNotFoundException
  The cluster security group name does not refer to an existing cluster security group.
  @throws AuthorizationNotFoundException
  The specified CIDR IP range or EC2 security group is not authorized for the specified cluster security
  group.
  @throws InvalidClusterSecurityGroupStateException
  The state of the cluster security group is not <code>available</code>.
  @sample AmazonRedshift.RevokeClusterSecurityGroupIngress
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/redshift-2012-12-01/RevokeClusterSecurityGroupIngress"
  target="_top">AWS API Documentation</a>