import { FileChooserButton, PropertyChangeEvent, ValueFieldAdapter } from '../../../index';
export declare class FileChooserButtonAdapter extends ValueFieldAdapter {
    widget: FileChooserButton;
    protected _onWidgetPropertyChange(event: PropertyChangeEvent<any, FileChooserButton>): void;
    protected _onValueChange(event: PropertyChangeEvent<File, FileChooserButton>): void;
    protected _syncDisplayText(displayText: string): void;
}
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