private boolean parseAwaitExpression(boolean isTargetExpression) {
    if (atToken(PyTokenTypes.AWAIT_KEYWORD)) {
      final SyntaxTreeBuilder.Marker expr = myBuilder.mark();
      myBuilder.advanceLexer();

      if (!parseMemberExpression(isTargetExpression)) {
        myBuilder.error(message("PARSE.expected.expression"));
        expr.done(PyElementTypes.PREFIX_EXPRESSION);
      }
      else {
        expr.done(PyElementTypes.PREFIX_EXPRESSION);
      }

      return true;
    }
    else {
      return parseMemberExpression(isTargetExpression);
    }
  }
private boolean parseAwaitExpression(boolean isTargetExpression)