import { PickerConfiguration, SelectedFile } from '../../types';
export declare class SharePointMessageManager {
    private port;
    private pickerWindow;
    private channelId;
    private clientId;
    private onSelectCallback?;
    private onCloseCallback?;
    constructor(channelId: string, clientId: string, onSelect?: (files: SelectedFile[]) => Promise<void>, onClose?: () => void);
    getChannelId(): string;
    openPicker(sitehostname: string, config: PickerConfiguration): Promise<void>;
    private createPickerUrl;
    private setupMessageListener;
    private sendMessage;
    private handlePickerMessage;
    private handleCommand;
    close(): void;
}
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