/**
 * This error is used only when the Platform API add-on attachment resolver resolves to one or more matches, but
 * a namespace (credential name) was provided and none of them had that exact namespace.
 *
 * We would've expected this to use the same error message the resolver returns when it throws a Not Found error:
 * `"Couldn't find that add on attachment."`, because it's attachments and not add-ons that are being resolved.
 *
 * However, that's not the case here and we cannot refactor this to use the expected messaging because the only
 * command checking credentials, `pg:psql`, has a check with a strict match on the error message text to change
 * the error displayed to the user
 * ([see here](https://github.com/heroku/cli/blob/b79f2c93d6f21eafd9d93983bcd377e4bc7f8438/packages/cli/src/commands/pg/psql.ts#L32)).
 */
export declare class NotFound extends Error {
    readonly resource: string;
    readonly statusCode = 404;
    constructor(resource?: string);
    get body(): {
        id: string;
        message: string;
        resource: string;
    };
    get http(): {
        body: {
            id: string;
            message: string;
            resource: string;
        };
        statusCode: number;
    };
    get message(): string;
}