What is the type of a query?

[sam-the-programmer]

I am using openfoodfacts.products.search(query). What is the query parameter (ie. what is the type and an example of how to use it).

Specifically, I'd like to search for products with a similar name to a given name, and also all have an origin_tags attribute that contains en, to get all of the english tagged names for places of origins. I'd also do the same for the countries_tags attribute.