import type { DfuOptions } from './specs/NativeDfuNitro.nitro';
import { DfuState, DfuError } from './specs/NativeDfuNitro.nitro';
export interface DfuProgress {
    part: number;
    totalParts: number;
    progress: number;
    currentSpeed: number;
    avgSpeed: number;
}
export interface DfuManagerOptions extends DfuOptions {
    onStateChange?: (state: DfuState) => void;
    onProgress?: (progress: DfuProgress) => void;
}
export declare class DfuException extends Error {
    readonly code: DfuError;
    constructor(code: DfuError, message: string);
}
export declare class DfuNitroManager {
    private readonly native;
    constructor();
    /**
     * Start a DFU process. Returns a Promise that resolves when the DFU
     * completes successfully, or rejects with a `DfuException` on error/abort.
     *
     * Use `onStateChange` and `onProgress` in options to receive live updates.
     */
    startDfu(options: DfuManagerOptions): Promise<void>;
    /** Pause the current DFU process. */
    pause(): void;
    /** Resume a paused DFU process. */
    resume(): void;
    /** Abort the current DFU process. */
    abort(): void;
}
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