Does anyone know how "D-number" designation maps to "Pin-number" designation?

substitutions:
  device_name: detapowerpoint1
  friendly_name: "detapowerpoint1"
  device_ip: 192.168.1.131
  current_res: "0.00268" # Random value. Requires power monitoring calibration
  voltage_div: "818" # Random value. Requires power monitoring calibration

esphome:
  name: ${device_name}
  friendly_name: ${friendly_name}

libretuya:
  board: wb2s
  framework:
    version: dev

# Enable logging
logger:
 # level: DEBUG
#  baud_rate: 0

# Enable Home Assistant API
api:
  encryption:
    key: "my encryption key"

ota:
  password: "my password"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  #use_address: 192.168.1.21 
  manual_ip: 
    static_ip: ${device_ip}
    gateway: 192.168.1.1
    subnet: 255.255.255.0
 

  # Enable fallback hotspot in case wifi connection fails
  ap:
    ssid: "Detapowerpoint1 Fallback Hotspot"
    password: "my password"

# Enable time component for use by daily power sensor
time:
  - platform: homeassistant
    id: homeassistant_time

uart:
  rx_pin: P10
  baud_rate: 4800

sensor:
  - platform: uptime
    name: ${friendly_name} Uptime
    filters:
      - lambda: return x / 60.0;
    unit_of_measurement: minutes

  - platform: wifi_signal
    name: ${friendly_name} Signal
    update_interval: 300s

  - platform: cse7766
    update_interval: 15s
    current:
      name: "${friendly_name} Current"
      icon: mdi:current-ac
      filters:
        - multiply: 4.867
        - sliding_window_moving_average:
            window_size: 10
            send_every: 10
            send_first_at: 1
    voltage:
      name: "${friendly_name} Voltage"
      icon: mdi:flash
      filters:
        - multiply: 1.905
        - sliding_window_moving_average:
            window_size: 10
            send_every: 10
            send_first_at: 1
    power:
      name: "${friendly_name} Power"
      icon: mdi:gauge
      id: ${friendly_name}_wattage
      filters:
        - sliding_window_moving_average:
            window_size: 10
            send_every: 10
            send_first_at: 1

    energy:
      name: "${friendly_name} Power"
      icon: mdi:gauge
      id: ${friendly_name}_energy
      filters:
        - sliding_window_moving_average:
            window_size: 10
            send_every: 10
            send_first_at: 1

  - platform: total_daily_energy
    name: "${friendly_name} Daily Energy"
    power_id: ${friendly_name}_wattage
    filters:
      - multiply: 0.001
    unit_of_measurement: kWh
    icon: mdi:chart-bar
    
output:
  - platform: gpio
    pin: P8
    inverted: false
    id: led

# Buttons
binary_sensor:
  # Left button
  - platform: gpio
    device_class: power
    pin:
      number: P7
      mode: INPUT
      inverted: True
    name: "${friendly_name} Left Button"
    #toggle relay on push
    on_press:
      - switch.toggle: relay_a

  # Right button
  - platform: gpio
    device_class: power
    pin:
      number: D6
      mode: INPUT
      inverted: True
    name: "${friendly_name} Right Button"
    #toggle relay on push
    on_press:
      - switch.toggle: relay_b

text_sensor:
# Reports the ESPHome Version with compile date
  - platform: version
    name: ${friendly_name} ESPHome Version
    
switch:
  - platform: gpio
    pin: P6
    name: "${friendly_name} - A"
    restore_mode: always off
    id: relay_a
    icon: mdi:power-socket-au

  - platform: gpio
    pin: D7
    name: "${friendly_name} - B"
    restore_mode: always off
    id: relay_b
    icon: mdi:power-socket-au

    on_turn_on:
      - output.turn_on: led
    on_turn_off:
    - output.turn_off: led