attributes property
Highly encouraged.
Extra product attributes to be included. For example, for products, this
could include the store name, vendor, style, color, etc. These are very
strong signals for recommendation model, thus we highly recommend
providing the attributes here. Features that can take on one of a limited
number of possible values. Two types of features can be set are: Textual
features. some examples would be the brand/maker of a product, or country
of a customer. Numerical features. Some examples would be the
height/weight of a product, or age of a customer. For example: { "vendor": {"text": ["vendor123", "vendor456"]}, "lengths_cm": {"numbers":[2.3, 15.4]}, "heights_cm": {"numbers":[8.1, 6.4]} }. This
field needs to pass all below criteria, otherwise an INVALID_ARGUMENT
error is returned: * Max entries count: 200. * The key must be a UTF-8
encoded string with a length limit of 128 characters. * For indexable
attribute, the key must match the pattern: a-zA-Z0-9*. For example,
key0LikeThis or KEY_1_LIKE_THIS. * For text attributes, at most 400
values are allowed. Empty values are not allowed. Each value must be a
non-empty UTF-8 encoded string with a length limit of 256 characters. *
For number attributes, at most 400 values are allowed.
Implementation
core.Map<core.String, GoogleCloudRetailV2CustomAttribute>? attributes;