import type { APIClient } from '@heroku-cli/command';
import type { ExtendedAddonAttachment } from '../../types/pg/platform-api.js';
export interface AddonAttachmentResolverOptions {
    addonService?: string;
    namespace?: string;
}
export default class AddonAttachmentResolver {
    private readonly heroku;
    private readonly attachmentHeaders;
    constructor(heroku: APIClient);
    resolve(appId: string | undefined, attachmentId: string, options?: AddonAttachmentResolverOptions): Promise<ExtendedAddonAttachment>;
    private singularize;
}