The resource name of a
ProductSet to be
searched for similar images. Format is: projects/PROJECT_ID
/locations/LOC_ID/productSets/PRODUCT_SET_ID.
The filtering expression. This can be used to restrict search
results based on Product labels. We currently support an AND
of OR of key-value expressions, where each expression within
an OR must have the same key. For example, "(color = red OR
color = blue) AND brand = Google" is acceptable, but not
"(color = red OR brand = Google)" or "color: red".