Image_processing config validation error - help

Configuration
1

My config was valid when checked. When I added the following to my config:

image_processing:
  - platform: tensorflow
    source:
      - entity_id: camera.basement_exterior
    model:
      graph: /home/homeassistant/.homeassistant/tensorflow/frozen_inference_graph.pb

and re-ran config validation I get:

AttributeError: module 'homeassistant.helpers.config_validation' has no attribute 'comp_entity_ids'

My addition to the config exactly matches the documentation and the entity_id is valid (I triple-checked spelling). Any ideas? I’m on the latest HA version .85