Esphome invalid config KC-868 A8

[Lory]

In KC-868 A8 in EspHome I have problems setting up the switch component.

I want that when I press digital Input#1 then relay #1 Toggles.

PCF8574 I/O Expander uses I2C Bus to set IDs, probably that is why the YAML validator don't recognizes the ID of light1? I don't know.
I know I can link the inputs and the relays in HomeAssistant, but I want the logic to be coded in the board so It still works if Internet brokes.
I also know that KCS firmware allows that requirement, but I am looking for an EspHome solution.

Thank you

EspHome Config:

Code:

esphome:
  name: esphome-web-026fd8
  platform: ESP32
  board: esp32dev

i2c:
  sda: 4
  scl: 5
  scan: true
  id: bus_a

logger:

api:

ota:
  - platform: esphome

ethernet:
  type: LAN8720
  mdc_pin: GPIO23
  mdio_pin: GPIO18
  clk_mode: GPIO17_OUT
  phy_addr: 0

pcf8574:
  - id: 'out'  # for output channel 1-8
    address: 0x24

  - id: 'in'  # for input channel 1-8
    address: 0x22

switch:
  - platform: gpio
    name: "light1"
    pin:
      pcf8574: out
      number: 0
      mode: OUTPUT
      inverted: true


binary_sensor:
  - platform: gpio
    name: "input1"
    pin:
      pcf8574: in
      number: 0
      mode: INPUT
      inverted: true
    on_press:
      then:
        - switch.toggle: light1

Yaml Validator Output: