private static boolean isDomainSocketAuthority(String host) {
        // Return true if `host` starts with `unix%3A` or `unix%3a`.
        return host.length() > 7 &&
               host.startsWith("unix%3") &&
               Ascii.toUpperCase(host.charAt(6)) == 'A';
    }
Creates a new host {@link Endpoint} <strong>without</strong> validation.

<p>Note that you should carefully use this method only when both {@code host} and {@code port} are
already valid.
core/src/main/java/com/linecorp/armeria/client/Endpoint.java