Get all line items from an account, up to 100 per request.
By default you will only get a few system fields and the
hs_product_id property for any line items in the response. If you want to get specific properties, you'll need to use the
&properties= parameter in the request URL. The parameter can be included multiple times, so you can request any properties you may need. See the parameter descriptions below and the examples for more details.