RequiredArgumentBuilder.argument("SERVER_ARG", StringArgumentType.string())
                .suggests((ctx, builder) -> {
                    String soFar = builder.getRemaining();
                    if (soFar.isEmpty()) {
                        // Suggest all names
                        for (final RegisteredServer sv : server.getAllServers()) {
                            final String serverName = sv.getServerInfo().getName();
                            // Note: Unquoted strings do not actually accept all of ASCII
                            //  They only accept the characters defined by `StringReader#isAllowedInUnquotedString`
                            if (CharMatcher.ascii().matchesAllOf(serverName)) {
                                builder.suggest(serverName);
                            } else {
                                // Quote names that have characters which require quotes
                                builder.suggest('"' + serverName + '"');
                            }
                        }
                        return builder.buildFuture();
                    } else if (soFar.charAt(0) == '"') {
                        // Suggest all names within quotes
                        soFar = soFar.substring(1);
                        for (final RegisteredServer sv : server.getAllServers()) {
                            final String serverName = sv.getServerInfo().getName();
                            if (serverName.startsWith(soFar)) {
                                builder.suggest('"' + serverName + '"');
                            }
                        }
                    } else {
                        // Only suggest names that don't need quotes
                        for (final RegisteredServer sv : server.getAllServers()) {
                            final String serverName = sv.getServerInfo().getName();
                            if (CharMatcher.ascii().matchesAllOf(serverName) && serverName.startsWith(soFar)) {
                                builder.suggest(serverName);
                            }
                        }
                    }
                    return builder.buildFuture();
                })