/**
  * Delete Security Group 
  * The DeleteSecurityGroup operation deletes a security group.
  * Note:
  * If you attempt to delete a security group that contains instances, a fault is
  * returned.
  * If you attempt to delete a security group that is referenced by another
  * security group, a fault is returned. For example, if security group B has a
  * rule that allows access from security group A, security group A cannot be
  * deleted until the allow rule is removed.
  * 
  * @see http://docs.amazonwebservices.com/AWSEC2/2008-12-01/DeveloperGuide/ApiReference-Query-DeleteSecurityGroup.html
  * @param mixed $request array of parameters for Amazon_EC2_Model_DeleteSecurityGroupRequest request
  * or Amazon_EC2_Model_DeleteSecurityGroupRequest object itself
  * @see Amazon_EC2_Model_DeleteSecurityGroup
  * @return Amazon_EC2_Model_DeleteSecurityGroupResponse Amazon_EC2_Model_DeleteSecurityGroupResponse
  *
  * @throws Amazon_EC2_Exception
  */
 public function deleteSecurityGroup($request)
 {
     if (!$request instanceof Amazon_EC2_Model_DeleteSecurityGroupRequest) {
         require_once 'Amazon/EC2/Model/DeleteSecurityGroupRequest.php';
         $request = new Amazon_EC2_Model_DeleteSecurityGroupRequest($request);
     }
     require_once 'Amazon/EC2/Model/DeleteSecurityGroupResponse.php';
     return Amazon_EC2_Model_DeleteSecurityGroupResponse::fromXML($this->_invoke($this->_convertDeleteSecurityGroup($request)));
 }
 /**
  * Delete Security Group 
  * The DeleteSecurityGroup operation deletes a security group.
  * Note:
  * If you attempt to delete a security group that contains instances, a fault is
  * returned.
  * If you attempt to delete a security group that is referenced by another
  * security group, a fault is returned. For example, if security group B has a
  * rule that allows access from security group A, security group A cannot be
  * deleted until the allow rule is removed.
  *   
  * @see http://docs.amazonwebservices.com/AWSEC2/2008-12-01/DeveloperGuide/ApiReference-Query-DeleteSecurityGroup.html      
  * @param mixed $request array of parameters for Amazon_EC2_Model_DeleteSecurityGroup request or Amazon_EC2_Model_DeleteSecurityGroup object itself
  * @see Amazon_EC2_Model_DeleteSecurityGroup
  * @return Amazon_EC2_Model_DeleteSecurityGroupResponse Amazon_EC2_Model_DeleteSecurityGroupResponse
  *
  * @throws Amazon_EC2_Exception
  */
 public function deleteSecurityGroup($request)
 {
     require_once 'Amazon/EC2/Model/DeleteSecurityGroupResponse.php';
     return Amazon_EC2_Model_DeleteSecurityGroupResponse::fromXML($this->_invoke('DeleteSecurityGroup'));
 }