export declare type RequireOnlyOne<T, Keys extends keyof T = keyof T> = Pick<T, Exclude<keyof T, Keys>> & {
    [K in Keys]-?: Required<Pick<T, K>> & Partial<Record<Exclude<Keys, K>, undefined>>;
}[Keys];
export declare type KeysMatching<T, V> = T[{
    [K in keyof T]: T[K] extends V ? K : never;
}[keyof T]];
export declare type RequireAtLeastOne<T, Keys extends keyof T = keyof T> = Pick<T, Exclude<keyof T, Keys>> & {
    [K in Keys]-?: Required<Pick<T, K>>;
}[Keys];