presto-main/src/main/java/io/prestosql/server/security/JsonWebTokenConfig.java/JsonWebTokenConfig/setRequiredIssuer
class JsonWebTokenConfig:    @Config("http.authentication.jwt.required-issuer")
    public JsonWebTokenConfig setRequiredIssuer(String requiredIssuer)
    {
        this.requiredIssuer = requiredIssuer;
        return this;
    }