private ColumnDescription CreateColumnDescription(string name, Type type)
 {
     return(ActivatorHelper.ActivateNonPublic <ColumnDescription>(name, type));
 }
 private TableDescription CreateTableDescription(string name, IReadOnlyCollection <ColumnDescription> columns)
 {
     return(ActivatorHelper.ActivateNonPublic <TableDescription>(name, columns));
 }