export type NonScalarIdentifiable<P extends string | number> = {
    id: P;
};
export type Identifiable<P extends string | number> = NonScalarIdentifiable<P>;
export type NonScalarIdentifiableType<T> = T extends {
    id: infer P;
} ? P extends string | number ? P : never : never;
export declare function hasId(val: any): val is Identifiable<string | number>;
export declare function getId<P extends string | number>(val: Identifiable<P> | P): P;
export declare function getOptionalId<T>(val: T): string | number | T;
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