How best to handle keepalive timeout? about espduino HOT 3 OPEN

Looking at the mqtt.c source in esp_bridge looks like it might need a new tcpDisconnectedCb that gets called around line 300 in here

        if(client->reconnectTick > MQTT_RECONNECT_TIMEOUT) {
            client->reconnectTick = 0;
            client->connState = TCP_RECONNECT;
            system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
        }

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Okay, I went ahead and added the tcpDisconnectedCb into esp_mqtt, esp_bridge, and espduino. I can send a pull request if it's something you want to add into the base.

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Hello,

When I upload software to esp8266 I get an error that is below. Please help me !!!.

pi@raspberrypi /usr/share/arduino/libraries/espduino $ sudo esp8266/tools/esptool.py -p /dev/ttyUSB0 write_flash 0x00000 esp8266/release/0x00000.bin 0x40000 esp8266/release/0x40000.bin
Could not find platform dependent libraries
Consider setting $PYTHONHOME to [:]
Traceback (most recent call last):
File "esp8266/tools/esptool.py", line 22, in
import serial
ImportError: No module named serial

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