AWS Account Number of the owner of the EC2 security group specified in the EC2SecurityGroupName parameter. The AWS Access Key ID is not an
acceptable value. For VPC DB security groups, EC2SecurityGroupId must be provided. Otherwise, EC2SecurityGroupOwnerId and either
EC2SecurityGroupName or EC2SecurityGroupId must be provided.
Declaration Syntax| C# |
public string EC2SecurityGroupOwnerId { get; set; }