export declare type CustomOptional<T, K> = {
    [P in keyof T]?: K;
};
export declare type Subset<T> = {
    [P in keyof T]: T[P];
};
export declare type OptionalKeys<T extends object> = Exclude<{
    [K in keyof T]: T extends Record<K, T[K]> ? never : K;
}[keyof T], undefined>;
export declare type MandatoryKeys<T extends object, V extends any = any> = Exclude<{
    [K in keyof T]: T extends Record<K, T[K]> ? (T[K] extends V ? K : never) : never;
}[keyof T], undefined>;
export declare type RequireOptionals<T extends object, Keys extends OptionalKeys<T> = OptionalKeys<T>> = Pick<T, Exclude<keyof T, Keys>> & {
    [K in Keys]-?: Required<Pick<T, K>> & Partial<Pick<T, Exclude<Keys, K>>>;
}[Keys];
export declare type RequireOneOptional<T extends object, Keys extends OptionalKeys<T> = OptionalKeys<T>> = Pick<T, Exclude<keyof T, Keys>> & {
    [K in Keys]-?: Required<Pick<T, K>> & Partial<Record<Exclude<Keys, K>, undefined>>;
}[Keys];
export declare type Constructor<T> = new (...args: any) => T;
export declare type ArrayType<T extends any[]> = T extends (infer I)[] ? I : never;
export declare type PartialProperties<T, K extends keyof T> = Omit<T, K> & Partial<Pick<T, K>>;
export declare type Identity = {
    id: string;
};
export declare type StringMap = {
    [s: string]: string;
};
export declare type ObjectTS = {
    [s: string]: any;
};
export declare type TypedMap<ValueType> = {
    [s: string]: ValueType;
};
export declare type DB_Object = {
    _id: string;
};
export declare type Auditable = {
    _audit?: AuditBy;
};
export declare type AuditBy = {
    comment?: string;
    auditBy: string;
    auditAt: Timestamp;
};
export declare type Timestamp = {
    timestamp: number;
    pretty: string;
    timezone?: string;
};
export declare type FunctionKeys<T> = {
    [K in keyof T]: T[K] extends Function ? K : never;
}[keyof T];
export declare const Void: void;
export declare type PackageJson = {
    version: string;
    name: string;
};
export declare type DeflatePromise<T> = T extends Promise<infer A> ? A : T;
export declare type ReturnPromiseType<T extends (...args: any) => any> = T extends (...args: any) => infer R ? DeflatePromise<R> : never;
export declare type RangeTimestamp = {
    min: number;
    max: number;
};