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Reviewed By: alexsn Differential Revision: D17119262 fbshipit-source-id: 046f095ca9432c920778db0edb2158dedb23c0a2
User-Card O2O Relation Example
An example for a O2O relation between a User and Card.
In the example, a User can have only one card, and a card must have exactly one owner (required edge).
Generate Assets
go generate ./...