import { ExternalConstants } from './../constants/PhonePeSDKExternalConstants';
import Permission = ExternalConstants.Permission;
export declare class PhonePeUtils {
    static assert(condition: boolean, message: string): void;
    static assertString(param: any | undefined, allowUndefined?: boolean): void;
    static assertNumber(param: any | undefined, allowUndefined?: boolean): void;
    static assertBoolean(param: any | undefined, allowUndefined?: boolean): void;
    static assertFunction(param: any | undefined, allowUndefined?: boolean): void;
    static assertArray(param: any | undefined, allowUndefined?: boolean): void;
    static assertObject(param: any | undefined, allowUndefined?: boolean): void;
    static assertType(param: any, type: string, allowUndefined?: boolean): void;
    static returnResolution<T>(data?: T): Promise<T>;
    static returnRejection<T>(reason?: any): Promise<T>;
    static isValidSpecies(species: string): boolean;
    static isValidOS(os: string): boolean;
    static createuuid(): string;
    static osSpecificPermissionNames(listOfPermissions: Permission[], os: ExternalConstants.OS): string[];
    static strippedPermissionName(permission: string, os: ExternalConstants.OS): string;
    static isValidMethodOniOS(methodName: string): boolean;
    static getReserveOrderPayload(payload: Object, providerId: string): any;
}