# File lib/fog/aws/requests/efs/describe_mount_target_security_groups.rb, line 21
        def describe_mount_target_security_groups(mount_target_id)
          response = Excon::Response.new

          unless self.data[:mount_targets][mount_target_id]
            raise Fog::AWS::EFS::NotFound.new("invalid mount target ID: #{mount_target_id}")
          end

          response.body = {"SecurityGroups" => self.data[:security_groups][mount_target_id]}
          response
        end