import React from "react";
import { AttachmentService, AttachmentUpload } from "../../AttachmentService";
import { Attachment } from "../../util/attrs";
export interface Props {
    attachmentService: AttachmentService;
    attachment: Attachment;
    children: (preview: AttachmentUpload) => React.ReactNode;
}
export interface State {
    observable: ReturnType<AttachmentService["getUploadState"]>;
}
export declare class AttachmentUploadSubscribe extends React.Component<Props, State> {
    readonly state: State;
    render(): JSX.Element;
    static getDerivedStateFromProps: React.GetDerivedStateFromProps<Props, State>;
}