/**
 * Options for constructing an IncomingFile instance.
 */
interface IncomingFileConstructorOptions {
    /**
     * Original filename as provided by the client, or null if unavailable.
     */
    originalName: string | null;
    /**
     * Internal name or identifier for the file.
     */
    name: string;
    /**
     * MIME type of the file (e.g., "image/png").
     */
    mimeType: string;
    /**
     * Buffer containing the raw file data.
     */
    buffer: Buffer;
    /**
     * Key or field name associated with this file in the request.
     */
    key: string;
}
/**
 * Represents an uploaded file in an incoming request.
 * Provides access to file metadata, raw buffer, and Blob representation.
 */
export default class IncomingFile {
    #private;
    /**
     * Constructs a new IncomingFile.
     *
     * @param options configuration options including buffer, names, and MIME type.
     */
    constructor(options: IncomingFileConstructorOptions);
    /**
     * MIME type of the file.
     */
    get mimeType(): string;
    /**
     * Original filename provided by the client.
     */
    get originalName(): string | null;
    /**
     * Field key associated with this file in the form data.
     */
    get incomingFileKey(): string;
    /**
     * Returns a Blob representation of the file data.
     * Caches the Blob for subsequent calls.
     *
     * @returns blob containing the file's binary data and correct MIME type.
     */
    blob(): Blob;
    /**
     * Returns the raw Buffer of the file data.
     *
     * @returns buffer containing the file's binary content.
     */
    buffer(): Buffer;
}
export {};