What is the best way to list the members inside a voice channel ?

const channel = await guild.channels.fetch("<id>")
                        .catch( err => {
                            if (err.status === 404) {
                                return null;
                            }

                            throw err;
                        });
                    if (channel?.type !== ChannelType.GuildVoice) {
                        throw new Error("Not a voice channel");
                        return;
                    } else if (channel.members.size > 0) {
                        throw new Error("Some users are still in voice channel");
                        return;
                    }

const channel = await guild.channels.fetch("<id>")
                        .catch( err => {
                            if (err.status === 404) {
                                return null;
                            }

                            throw err;
                        });
                    if (channel?.type !== ChannelType.GuildVoice) {
                        throw new Error("Not a voice channel");
                        return;
                    } else if (channel.members.size > 0) {
                        throw new Error("Some users are still in voice channel");
                        return;
                    }