startThread
suspend fun startThread(channelId: Snowflake, multipartRequest: MultipartStartThreadRequest, reason: String? = null): DiscordChannel(source)
suspend fun startThread(channelId: Snowflake, request: StartThreadRequest, reason: String? = null): DiscordChannel(source)
suspend fun startThread(channelId: Snowflake, name: String, archiveDuration: ArchiveDuration, type: ChannelType, builder: StartThreadBuilder.() -> Unit = {}): DiscordChannel(source)