import type * as keys from "./object.keys";
import type { And } from "./core";
export type Optional<T extends object> = And<{
    [K in keys.WritableDefined<T>]: T[K];
}, {
    [K in keys.WritableUndefined<T>]?: Exclude<T[K], undefined>;
}, {
    readonly [K in keys.ReadonlyDefined<T>]: T[K];
}, {
    readonly [K in keys.ReadonlyUndefined<T>]?: Exclude<T[K], undefined>;
}>;
export type OptionalUndefined<T extends object> = And<{
    [K in keys.WritableDefined<T>]: T[K];
}, {
    [K in keys.WritableUndefined<T>]?: T[K] | undefined;
}, {
    readonly [K in keys.ReadonlyDefined<T>]: T[K];
}, {
    readonly [K in keys.ReadonlyUndefined<T>]?: T[K] | undefined;
}>;
export type Undefined<T extends object> = And<{
    [K in keys.WritableDefined<T>]: T[K];
}, {
    [K in keys.WritableUndefined<T>]: T[K] | undefined;
}, {
    readonly [K in keys.ReadonlyDefined<T>]: T[K];
}, {
    readonly [K in keys.ReadonlyUndefined<T>]: T[K] | undefined;
}>;
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