The user-provided name for this Product. Must not be empty.
Must be at most 4096 characters long.
The category for the product identified by the reference
image. This should be either "homegoods-v2", "apparel-v2",
"toys-v2", or "packagedgoods-v1". The legacy categories
"homegoods", "apparel", and "toys" are still supported but
will be deprecated. For new products, please use
"homegoods-v2", "apparel-v2", or "toys-v2" for better product
search accuracy. It is recommended to migrate existing
products to these categories as well. This field is
immutable.