[Autocomplete] Types force multiple to be set

Prior to 4.9.0 (lab-alpha-40) /**

• If true, value must be an array and the menu will support multiple selections. */ multiple?: boolean;

After 4.9.0" /**

• If true, value must be an array and the menu will support multiple selections. */ multiple?: true;

I think it is a bug. Interface cannot have constants.

• The issue is present in the latest release.
• I have searched the issues of this repository and believe that this is not a duplicate.

Current Behavior 😯

Expected Behavior 🤔

Steps to Reproduce 🕹

Steps:

Context 🔦

Your Environment 🌎

Tech	Version
Material-UI	v4.?.?
React
Browser
TypeScript
etc.

[oliviertassinari]

@DevMammadov See this test case: https://github.com/mui-org/material-ui/blob/1fd983abd9c26d3d751f99d2efbfa2e5ab063786/packages/material-ui-lab/src/Autocomplete/Autocomplete.spec.tsx.

[DevMammadov]

i want costumize Autocomplate like this:

import React, { FC } from "react";
import { useStyles } from "./autocomplate.style";
import { useTranslator } from "localization";
import { Autocomplete, AutocompleteProps } from "@material-ui/lab/";
import { TextField } from "..";

export interface IAutoComplate {}

export const AutoComplate: FC<IAutoComplate & AutocompleteProps> = () => {
  const lang = useTranslator();
  const classes = useStyles();

  return (
    <Autocomplete
          id="combo-box-demo"
          options={[]}
          getOptionLabel={(option) => option}
          style={{ width: 300 }}
          renderInput={(params) => <TextField {...params} label="Combo box" variant="outlined" />}
    />
  );
};

but it gives me an error like this: Generic type ‘AutocompleteProps<T, Multiple, DisableClearable, FreeSolo>’ requires 4 type argument(s) what can i do in this situation ?