import { DeviceManagementKitTransportSpeculos } from "@ledgerhq/live-dmk-speculos";
export declare const delay: (timing: number) => Promise<unknown>;
export declare function ensureEnv(): void;
export declare function spawnSpeculos(nanoAppEndpoint: `/${string}`, options?: {
    libraries?: Array<{
        name: string;
        endpoint: `/${string}`;
    }>;
}): Promise<{
    transport: DeviceManagementKitTransportSpeculos;
    getOnSpeculosConfirmation: (approvalText?: string) => () => Promise<void>;
}>;
export declare function killSpeculos(): Promise<void>;
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