sonoff_zbbridge.yaml not validating in ESPHome

[PanMat]

The default file is not getting validated and giving following error:

`
INFO Reading configuration /config/esphome/sonoff_zbbridge.yaml...
ERROR Unable to load component serial_server.binary_sensor:
Traceback (most recent call last):
File "/esphome/esphome/loader.py", line 162, in _lookup_module
module = importlib.import_module(f"esphome.components.{domain}")
File "/usr/lib/python3.9/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1030, in _gcd_import
File "", line 1007, in _find_and_load
File "", line 986, in _find_and_load_unlocked
File "", line 680, in load_unlocked
File "", line 790, in exec_module
File "", line 228, in call_with_frames_removed
File "/config/esphome/custom_components/serial_server/binary_sensor.py", line 10, in
class = ns.class('BinarySensor', binary_sensor.BinarySensor, cg.Nameable)
AttributeError: module 'esphome.codegen' has no attribute 'Nameable'
Failed config

binary_sensor.serial_server: [source /config/esphome/sonoff_zbbridge.yaml:37]

Platform not found: 'binary_sensor.serial_server'.
platform: serial_server
name: Zigbee to serial
`