sensor:
- platform: template
  sensors:
    count_devices_bella:
      friendly_name: Bella's Device Count
      value_template: '{{ states.input_select | selectattr(''entity_id'', ''match'',
        ''^input_select.device_owner_.*'') | selectattr(''state'', ''eq'', ''Bella'')
        | list | count }}'
      icon_template: mdi:counter
    count_blocked_bella:
      friendly_name: Bella's Blocked Devices
      value_template: "\n{% set devices = states.input_select | selectattr('entity_id',\
        \ 'match', '^input_select.device_owner_.*') | selectattr('state', 'eq', 'Bella')\
        \ | map(attribute='entity_id') | list %}\n{% set blocked = namespace(count=0)\
        \ %}\n{% for device in devices %}\n  {% set device_name = device.replace('input_select.device_owner_',\
        \ '') %}\n  {% set block_entity = 'input_boolean.block_device_' ~ device_name\
        \ %}\n  {% if states(block_entity) == 'on' %}\n    {% set blocked.count =\
        \ blocked.count + 1 %}\n  {% endif %}\n{% endfor %}\n{{ blocked.count }}"
      icon_template: mdi:cancel
    count_devices_xander:
      friendly_name: Xander's Device Count
      value_template: '{{ states.input_select | selectattr(''entity_id'', ''match'',
        ''^input_select.device_owner_.*'') | selectattr(''state'', ''eq'', ''Xander'')
        | list | count }}'
      icon_template: mdi:counter
    count_blocked_xander:
      friendly_name: Xander's Blocked Devices
      value_template: "\n{% set devices = states.input_select | selectattr('entity_id',\
        \ 'match', '^input_select.device_owner_.*') | selectattr('state', 'eq', 'Xander')\
        \ | map(attribute='entity_id') | list %}\n{% set blocked = namespace(count=0)\
        \ %}\n{% for device in devices %}\n  {% set device_name = device.replace('input_select.device_owner_',\
        \ '') %}\n  {% set block_entity = 'input_boolean.block_device_' ~ device_name\
        \ %}\n  {% if states(block_entity) == 'on' %}\n    {% set blocked.count =\
        \ blocked.count + 1 %}\n  {% endif %}\n{% endfor %}\n{{ blocked.count }}"
      icon_template: mdi:cancel
    count_devices_william:
      friendly_name: William's Device Count
      value_template: '{{ states.input_select | selectattr(''entity_id'', ''match'',
        ''^input_select.device_owner_.*'') | selectattr(''state'', ''eq'', ''William'')
        | list | count }}'
      icon_template: mdi:counter
    count_blocked_william:
      friendly_name: William's Blocked Devices
      value_template: "\n{% set devices = states.input_select | selectattr('entity_id',\
        \ 'match', '^input_select.device_owner_.*') | selectattr('state', 'eq', 'William')\
        \ | map(attribute='entity_id') | list %}\n{% set blocked = namespace(count=0)\
        \ %}\n{% for device in devices %}\n  {% set device_name = device.replace('input_select.device_owner_',\
        \ '') %}\n  {% set block_entity = 'input_boolean.block_device_' ~ device_name\
        \ %}\n  {% if states(block_entity) == 'on' %}\n    {% set blocked.count =\
        \ blocked.count + 1 %}\n  {% endif %}\n{% endfor %}\n{{ blocked.count }}"
      icon_template: mdi:cancel
    count_devices_jess:
      friendly_name: Jess's Device Count
      value_template: '{{ states.input_select | selectattr(''entity_id'', ''match'',
        ''^input_select.device_owner_.*'') | selectattr(''state'', ''eq'', ''Jess'')
        | list | count }}'
      icon_template: mdi:counter
    count_blocked_jess:
      friendly_name: Jess's Blocked Devices
      value_template: "\n{% set devices = states.input_select | selectattr('entity_id',\
        \ 'match', '^input_select.device_owner_.*') | selectattr('state', 'eq', 'Jess')\
        \ | map(attribute='entity_id') | list %}\n{% set blocked = namespace(count=0)\
        \ %}\n{% for device in devices %}\n  {% set device_name = device.replace('input_select.device_owner_',\
        \ '') %}\n  {% set block_entity = 'input_boolean.block_device_' ~ device_name\
        \ %}\n  {% if states(block_entity) == 'on' %}\n    {% set blocked.count =\
        \ blocked.count + 1 %}\n  {% endif %}\n{% endfor %}\n{{ blocked.count }}"
      icon_template: mdi:cancel
    count_devices_parents:
      friendly_name: Parents's Device Count
      value_template: '{{ states.input_select | selectattr(''entity_id'', ''match'',
        ''^input_select.device_owner_.*'') | selectattr(''state'', ''eq'', ''Parents'')
        | list | count }}'
      icon_template: mdi:counter
    count_blocked_parents:
      friendly_name: Parents's Blocked Devices
      value_template: "\n{% set devices = states.input_select | selectattr('entity_id',\
        \ 'match', '^input_select.device_owner_.*') | selectattr('state', 'eq', 'Parents')\
        \ | map(attribute='entity_id') | list %}\n{% set blocked = namespace(count=0)\
        \ %}\n{% for device in devices %}\n  {% set device_name = device.replace('input_select.device_owner_',\
        \ '') %}\n  {% set block_entity = 'input_boolean.block_device_' ~ device_name\
        \ %}\n  {% if states(block_entity) == 'on' %}\n    {% set blocked.count =\
        \ blocked.count + 1 %}\n  {% endif %}\n{% endfor %}\n{{ blocked.count }}"
      icon_template: mdi:cancel
    count_devices_system:
      friendly_name: System's Device Count
      value_template: '{{ states.input_select | selectattr(''entity_id'', ''match'',
        ''^input_select.device_owner_.*'') | selectattr(''state'', ''eq'', ''System'')
        | list | count }}'
      icon_template: mdi:counter
    count_blocked_system:
      friendly_name: System's Blocked Devices
      value_template: "\n{% set devices = states.input_select | selectattr('entity_id',\
        \ 'match', '^input_select.device_owner_.*') | selectattr('state', 'eq', 'System')\
        \ | map(attribute='entity_id') | list %}\n{% set blocked = namespace(count=0)\
        \ %}\n{% for device in devices %}\n  {% set device_name = device.replace('input_select.device_owner_',\
        \ '') %}\n  {% set block_entity = 'input_boolean.block_device_' ~ device_name\
        \ %}\n  {% if states(block_entity) == 'on' %}\n    {% set blocked.count =\
        \ blocked.count + 1 %}\n  {% endif %}\n{% endfor %}\n{{ blocked.count }}"
      icon_template: mdi:cancel