import * as React from 'react'; export interface TreeViewEventLookupElement { params: object; } export type TreeViewEventListener = (params: E['params'], event: MuiEvent<{}>) => void; export type MuiBaseEvent = React.SyntheticEvent | DocumentEventMap[keyof DocumentEventMap] | {}; export type MuiEvent = E & { defaultMuiPrevented?: boolean; };