A list of cache security group names to authorize on this cache cluster. This change is asynchronously applied as soon as possible. This
parameter can be used only with clusters that are created outside of an Amazon Virtual Private Cloud (VPC). Constraints: Must contain no
more than 255 alphanumeric characters. Must not be "Default".
Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)