private async void btnImportKeyMap_Click(object sender, EventArgs e)
        {
            try
            {
                var result = await _migrator.ImportKeyMapTableAsync(_doc.Document);

                MessageBox.Show($"Imported table {result.@object} with {result.rowCount:n0} rows.");
            }
            catch (Exception exc)
            {
                MessageBox.Show(exc.Message);
            }
        }