A batch of CatalogObjects to be inserted/updated atomically.
The objects within a batch will be inserted in an all-or-nothing fashion, i.e., if an error occurs
attempting to insert or update an object within a batch, the entire batch will be rejected. However, an error
in one batch will not affect other batches within the same request.
For each object, its updated_at field is ignored and replaced with a current timestamp, and its
is_deleted field must not be set to true.
To modify an existing object, supply its ID. To create a new object, use an ID starting
with #. These IDs may be used to create relationships between an object and attributes of
other objects that reference it. For example, you can create a CatalogItem with
ID #ABC and a CatalogItemVariation with its item_id attribute set to
#ABC in order to associate the CatalogItemVariation with its parent
CatalogItem.
Any #-prefixed IDs are valid only within a single atomic batch, and will be replaced by server-generated IDs.
Each batch may contain up to 1,000 objects. The total number of objects across all batches for a single request
may not exceed 10,000. If either of these limits is violated, an error will be returned and no objects will
be inserted or updated.