message: Remove a comment-out import
diff: @@ -10,7 +10,6 @@ import * as h from '../helper';
  import { MolScriptBuilder } from '../../../mol-script/language/builder';
  const B = MolScriptBuilder;
  import { OperatorList } from '../types';
  -// import { Expression } from '../../language/expression';
  export const operators: OperatorList = [
  