import { EncodedParameterValue } from '../core/payload';
export type Nil = null | undefined;
export type NonNil<T> = T extends Nil ? never : T;
export type Nillable<T> = T | Nil;
export type Supplier<T> = () => T;
export type Func<T, U> = (t: T) => U;
export type Unary<T> = Func<T, T>;
export type Runnable = () => void;
export type PartialNillable<T> = {
    [K in keyof T]?: Nillable<T[K] extends object ? PartialNillable<T[K]> : T[K]>;
};
/**
 * A string that represents a hex encoded value.
 */
export type HexString = string;
export type Base64String = string;
export type Promisy<T> = T extends null | undefined ? never : T extends (() => infer R) | (() => Awaited<infer R>) | ((...x: any[]) => infer R) | ((...x: any[]) => Awaited<infer R>) ? T : T extends Function ? never : T;
export declare namespace Promisy {
    function resolve<T>(promisy: Promisy<T>): Promise<T>;
    function resolveOrReject<T>(promisy: Nillable<Promisy<T>>, nilError?: string): Promise<T>;
}
type UUID = string;
/**
 * ValueType is the type of the data in the database.
 *
 * If you are sending bytes to a blob column, you must send it as a Uint8Array. If you send a string to blob column, it will be converted to base64.
 */
export type ValueType = string | number | null | undefined | Array<ValueType> | boolean | Uint8Array | UUID;
export declare function isValueType(v: unknown): v is ValueType;
/**
 * QueryParams is a type for the parameters used within query.
 */
export type QueryParams = Record<string, ValueType>;
export type EncodedQueryParams = Record<string, EncodedParameterValue>;
export {};