Plugin fails with latest Gatsby

When using the latest Gatsby, this plugin fails validation:

Your plugins must export known APIs from their gatsby-node.js.
The following exports aren't APIs. Perhaps you made a typo or
your plugin is outdated?

See https://www.gatsbyjs.org/docs/node-apis/ for the list of Gatsby Node APIs
 — The plugin "gatsby-plugin-cockpit@1.0.39" is exporting a variable named "collectionsItems" which isn't an API.
 — The plugin "gatsby-plugin-cockpit@1.0.39" is exporting a variable named "regionsItems" which isn't an API.
 — The plugin "gatsby-plugin-cockpit@1.0.39" is exporting a variable named "collectionsNames" which isn't an API.

The offending lines are here:

ginetta-gatsby-source-plugin/gatsby-plugin-cockpit/gatsby-node.js

Line 37 in f47cc8e

exports.collectionsItems = collectionsItems;

I'm not sure of all the ramifications.