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The $it literal can be utilized inexpressions to check with the present instance of the collection identified bythe resource path. It can be used as apath prefix to invoke a bound operate on the current instance inside anexpression. � ServicesMAY help structural casting of entities and complex kind instances to aderived sort, or arbitrary structured sort, by assigning values of identicallynamed properties and casting them recursively. The cast fails if certainly one of theproperty-value casts fails or the target type incorporates non-nullable propertiestha