public AttachClassicLinkVpcRequest withGroups(java.util.Collection<String> groups) {
        setGroups(groups);
        return this;
    }
<p>
The IDs of the security groups. You cannot specify security groups from a different VPC.
</p>

@param groups
       The IDs of the security groups. You cannot specify security groups from a different VPC.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/AttachClassicLinkVpcRequest.java