public static boolean isNegation(@NotNull PsiExpression expression) {
    if (!(expression instanceof PsiPrefixExpression prefixExp)) {
      return false;
    }
    final IElementType tokenType = prefixExp.getOperationTokenType();
    return JavaTokenType.EXCL.equals(tokenType);
  }
public static boolean isNegation(@NotNull PsiExpression expression)