Rocket.Chat.Net.Driver.RocketChatDriver.SendCustomMessageAsync C# (CSharp) Method

        public async Task<MethodResult<RocketMessage>> SendCustomMessageAsync(Attachment attachment, string roomId)
        {
            var request = new
            {
                msg = "",
                rid = roomId,
                bot = IsBot,
                attachments = new[]
                {
                    attachment
                }
            };
            var result = await _client.CallAsync("sendMessage", TimeoutToken, request).ConfigureAwait(false);
            return result.ToObject<MethodResult<RocketMessage>>(JsonSerializer);
        }