House plan change

Configuration
1

Hello … I would like to create a floor plan of the house using the image elements card that can be changed via a button and show me a second floor.

I have found this type of setup, but I can’t get it to work

title: Floorplan
path: floorplan
panel: true
icon: mdi:floor-plan
cards:
  - type: horizontal-stack
    cards:
      - type: conditional
        conditions:
          - entity: input_select.floorplan_floor
            state: "1st Floor"
        card: !include _floorplan_first_floor.yaml

      - type: conditional
        conditions:
          - entity: input_select.floorplan_floor
            state: "2nd Floor"
        card: !include _floorplan_second_floor.yaml

But this kind of error appears
unknown tag !<!include> (7:48)
A help?