frontend/node_modules/next/dist/shared/lib/deep-readonly.d.ts

/**
 * A type that represents a deeply readonly object. This is similar to
 * TypeScript's `Readonly` type, but it recursively applies the `readonly`
 * modifier to all properties of an object and all elements of arrays.
 */
export type DeepReadonly<T> = T extends (infer R)[] ? ReadonlyArray<DeepReadonly<R>> : T extends object ? {
    readonly [K in keyof T]: DeepReadonly<T[K]>;
} : T;