message: skip Coarse models in export extension
diff: */
  import { utf8ByteCount, utf8Write } from '../../mol-io/common/utf8';
  -import { to_mmCIF } from '../../mol-model/structure';
  +import { to_mmCIF, Unit } from '../../mol-model/structure';
  import { PluginContext } from '../../mol-plugin/context';
  import { Task } from '../../mol-task';
  import { getFormattedTime } from '../../mol-util/date';
  @@ -38,6 +38,10 @@ function _exportHierarchy(plugin: PluginContext, options?: { format?: 'cif' | 'b
  plugin.log.warn(`[Export] Skipping ${_s.cell.obj?.label}: Multimodel exports not supported.`);
  continue;
  }
  + if (s.units.some(u => !Unit.isAtomic(u))) {
  + plugin.log.warn(`[Export] Skipping ${_s.cell.obj?.label}: Non-atomic model exports not supported.`);
  + continue;
  + }
  const name = entryMap.has(s.model.entryId)
  ? `${s.model.entryId}_${entryMap.get(s.model.entryId)! + 1}.${format}`
  