PUT / v1/shipping_classes/:id & Documentation

PUT https://api.storenvy.com/v1/shipping_classes/:id

Update a Shipping Class.

name	Your desired name for the Shipping Class. (e.g. "Express Shipping")
rates	An array of objects that include shipping_group_id, first_item_in_cents, and additional_item_in_cents. Note: You must specify a Rate for each combination of Shipping Group and Shipping Class. e.g. `[{"shipping_group_id": 923919, "first_item_in_cents" : 699, "additional_item_in_cents" : 399}]`
countries	["US", "CA"]