// and an attribute value.”
	i = skipSpace(s, i)
	if i+1 < len(s) && s[i] == '=' {
		i = skipSpace(s, i+1)
		if _, j, ok := parseAttrValue(s, i); ok {
			p.corner = p.corner || strings.Contains(s[i:j], "\ufffd")
			return s[i:j], j, true
		}
	}
	return "", 0, false
}

func parseAttrValue(s string, i int) (string, int, bool) {
	// “An attribute value consists of
	// an unquoted attribute value,

*   Fixes an interpreter crash from vulnerabilities in `tf.io.decode_raw`
    ([CVE-2021-29614](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29614))
*   Fixes a stack overflow in `ParseAttrValue` with nested tensors
    ([CVE-2021-29615](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29615))
*   Fixes a null dereference in Grappler's `TrySimplify`