# File lib/fog/cloudstack/requests/compute/list_security_groups.rb, line 17
        def list_security_groups(options={})
          security_groups = []
          if security_group_id = options['id']
            security_group = self.data[:security_groups][security_group_id]
            raise Fog::Compute::Cloudstack::BadRequest unless security_group
            security_groups = [security_group]
          else
            security_groups = self.data[:security_groups].values
          end

          {
            "listsecuritygroupsresponse" =>
            {
              "count"         => security_groups.size,
              "securitygroup" => security_groups
            }
          }
        end