type Primitive = string | number | boolean | bigint | symbol | null | undefined;
type IndexedValue<T> = T extends Record<string, infer V> ? V : never;
/**
 * Extract the data type for model construction.
 * Nested objects and arrays accept partial inputs, while index-signature maps
 * (like metadata dictionaries) preserve their value type.
 */
export type ConstructorData<T> = T extends Primitive ? T : T extends (infer U)[] ? ConstructorData<U>[] : T extends object ? (string extends keyof T ? {
    [key: string]: ConstructorData<IndexedValue<T>>;
} : {
    [K in keyof T]?: ConstructorData<T[K]>;
}) : T;
export {};
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