API docs: repository.belongstodefinition.polymorphic

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BelongsToDefinition.polymorphic property

The polymorphism of the target model. The discriminator is a key of source model. If the target model is not polymorphic, then the value should be left undefined or false; If the key on source model indicating the concrete class of the target instance is default i.e. camelCase(classNameOf(throughModelInstance)) + “Id” Then the discriminator field can be undefined

Signature:

polymorphic?: boolean | {
        discriminator: string;
    };