Method: Check if a given product is a variable product.

Method: Check if a given product is a variation.

Method: Return the list of taxonomies used for variations on a product together with the associated term ids, with the following format:

Method: Insert one entry in the lookup table.

Method: LookupDataStore constructor. Makes the feature hidden by default.

Method: Checks if the feature is visible (so that dedicated entries will be added to the debug tools page).

Method: Makes the feature visible, so that dedicated entries will be added to the debug tools page.

Method: Hides the feature, so that no entries will be added to the debug tools page.

Method: Insert or update the lookup data for a given product or variation.