@Override
  public void visitPyFStringFragment(@NotNull PyFStringFragment node) {
    final PsiElement typeConversion = node.getTypeConversion();
    if (typeConversion != null) {
      final String conversionChar = typeConversion.getText().substring(1);
      if (conversionChar.isEmpty()) {
        report(typeConversion, PyPsiBundle.message("ANN.fstrings.missing.conversion.character"));
      }
      else if (conversionChar.length() > 1 || "sra".indexOf(conversionChar.charAt(0)) < 0) {
        report(typeConversion, PyPsiBundle.message("ANN.fstrings.illegal.conversion.character", conversionChar));
      }
    }
  }
@Override
  public void visitPyFStringFragment(@NotNull PyFStringFragment node)