CREATE MIGRATION m14yikr2253u3hvn6fnj77xjb4uo6o7alftodkyss4koizfpzpzgrq
    ONTO m1yui4pyoh7ebe7txsda2ctarywhthxaxs3taqavem36job6zqjvua
{
  ALTER TYPE default::Message {
      CREATE PROPERTY selected: std::bool;
  };
};