export interface IsDrmSupportedParams {
    distinctiveIdentifier?: MediaKeysRequirement;
    encryptionScheme?: string | null;
    initDataTypes?: string[];
    persistentState?: MediaKeysRequirement;
    robustness?: string;
    sessionTypes?: string[];
    videoCapabilities?: MediaKeySystemMediaCapability[];
}
export declare function isDrmSupported(keySystem: string, params?: IsDrmSupportedParams): Promise<boolean>;