presto-password-authenticators/src/main/java/io/prestosql/plugin/password/LdapConfig.java/LdapConfig/setLdapCacheTtl
class LdapConfig:    @Config("ldap.cache-ttl")
    public LdapConfig setLdapCacheTtl(Duration ldapCacheTtl)
    {
        this.ldapCacheTtl = ldapCacheTtl;
        return this;
    }