pub fn quote_txt_record(record_contents: &str) -> String {
    let mut quoted_string = String::from(record_contents);
    if !quoted_string.starts_with('\"') {
        quoted_string = format!("\"{}", quoted_string);
    }
    if !quoted_string.ends_with('\"') {
        quoted_string = format!("{}\"", quoted_string);
    }
    quoted_string
}
Route53 TXT entries require quotations around their values.
Use this function to add quotes if needed. These examples show how
this adds quotes if needed:
```ignore
let rr = vec![
ResourceRecord {
value: quote_txt_record("foo"),
},
ResourceRecord {
value: quote_txt_record("\"baz\""),
},
];
```
rusoto/services/route53/src/custom/util.rs