code: func (c *Redshift) CreateClusterSecurityGroup(input *CreateClusterSecurityGroupInput) (*CreateClusterSecurityGroupOutput, error) {
  	req, out := c.CreateClusterSecurityGroupRequest(input)
  	return out, req.Send()
  }
docs: // CreateClusterSecurityGroup API operation for Amazon Redshift.
  //
  // Creates a new Amazon Redshift security group. You use security groups to
  // control access to non-VPC clusters.
  //
  // For information about managing security groups, go to Amazon Redshift Cluster
  // Security Groups (https://docs.aws.amazon.com/redshift/latest/mgmt/working-with-security-groups.html)
  // in the Amazon Redshift Cluster Management Guide.
  //
  // Returns awserr.Error for service API and SDK errors. Use runtime type assertions
  // with awserr.Error's Code and Message methods to get detailed information about
  // the error.
  //
  // See the AWS API reference guide for Amazon Redshift's
  // API operation CreateClusterSecurityGroup for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeClusterSecurityGroupAlreadyExistsFault "ClusterSecurityGroupAlreadyExists"
  //   A cluster security group with the same name already exists.
  //
  //   * ErrCodeClusterSecurityGroupQuotaExceededFault "QuotaExceeded.ClusterSecurityGroup"
  //   The request would result in the user exceeding the allowed number of cluster
  //   security groups. For information about increasing your quota, go to Limits
  //   in Amazon Redshift (https://docs.aws.amazon.com/redshift/latest/mgmt/amazon-redshift-limits.html)
  //   in the Amazon Redshift Cluster Management Guide.
  //
  //   * ErrCodeTagLimitExceededFault "TagLimitExceededFault"
  //   You have exceeded the number of tags allowed.
  //
  //   * ErrCodeInvalidTagFault "InvalidTagFault"
  //   The tag is invalid.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/redshift-2012-12-01/CreateClusterSecurityGroup