export interface DiscoveredDevice {
    variant: string;
    serial: string;
}
export declare class PicoError extends Error {
    constructor(message: string);
}
export declare type CallbackFn = (data: Map<string, Float32Array>) => void;
export declare class PicoDevice {
    private readonly devicePtr;
    private callback?;
    static enumerate(downloadMissingDrivers?: boolean): Promise<DiscoveredDevice[]>;
    static open(serial?: string, downloadMissingDrivers?: boolean): Promise<PicoDevice>;
    private constructor();
    get variant(): string;
    get serial(): string;
    close(): void;
    getChannelRanges(channel: string): string[];
    enableChannel(channel: string, range: string, coupling?: string): void;
    disableChannel(channel: string): void;
    setCallback(callback: CallbackFn): void;
    startStreaming(samplesPerSecond: number): Promise<number>;
    stopStreaming(): void;
    private static throwError;
    private static readString;
    private callbackHandler;
}