public @NotNull PsiElement createStringLiteral(String unescapedContent) {
    PsiFile file = createDummyFile("['" + StringUtil.escapeStringCharacters(unescapedContent) + "']");
    JsonPathQuotedPathsList quotedPathsList = ((JsonPathExpressionSegment)file.getFirstChild()).getQuotedPathsList();
    return requireNonNull(quotedPathsList).getStringLiteralList().get(0);
  }
public @NotNull PsiElement createStringLiteral(String unescapedContent)