Fade led up and down while pressing button

Fade_w_button2.yaml

output:
  - platform: ledc
    pin: 16
    frequency: 40000Hz
    bit_depth: 10
    id: LED_gpio_16

light:
  - platform: monochromatic
    name: "printer_led_light"
    default_transition_length: .1s
    id: printer_led
    output: LED_gpio_16

globals:
  - id: my_global
    type: bool
    restore_value: no
    initial_value: 'true'
   
binary_sensor:
  - platform: gpio
    pin:
      number: 22
      mode: INPUT_PULLUP
      inverted: True
    id: button1
    name: button1
    retain: false
    on_press:
      then:
        - if:
            condition:
             # lambda to ensure the global variable is returning true initially.  Just for debug
              lambda: |-
                ESP_LOGD("paul", "Global value is: %d", id(my_global));
                return id(my_global);
              # When above condition evaluates to true - Fade_up function else Fade_down
            then:
            # Fade_up function
              - while:
                  condition:
                    binary_sensor.is_on: button1
                  then:
                    - light.turn_on:
                        id: printer_led
                        brightness: !lambda 'return id(printer_led).get_current_values().get_brightness() + 0.05;'
                    - delay: 0.05s
                    - logger.log: "executing up"
              - lambda: |-
                  id(my_global) = (false);
                  # flips the value of the global variable once the button is released
            else:
            # Fade_down function
              - while:
                  condition:
                    binary_sensor.is_on: button1
                  then:
                    - light.turn_on:
                        id: printer_led
                        brightness: !lambda 'return (id(printer_led).get_current_values().get_brightness() == 0.1) ? 0.1 : id(printer_led).get_current_values().get_brightness() - 0.05;'
                        # brightness: !lambda 'return id(printer_led).get_current_values().get_brightness() - 0.05;'
                    - delay: 0.05s
                    - logger.log: "executing down"
              - lambda: |-
                  id(my_global) = (true);
                  # flips the value of the global variable once the button is released