let companyInfo: PublicCompanyAPIResponseType;
companyInfo = await get<PublicCompanyAPIResponseType>({
    url: getcompanyDataURL,}).catch(res => {
    responseStatus = res.status;
});

当我将companyInfo变量分配给该函数时

export async function get<T>({ url,headers }: ApiConnectSet): Promise<T> {
return new Promise((resolve,reject) => {
    fetch(url,{
        method: 'GET',credentials: 'same-origin',headers: headers,})
        .then(async res => {
            if (res.ok) {
                return resolve((await res.json()) as Promise<T>);
            } else if (res.status === 401) {
                const redirectPath = window.location.pathname;
                window.location.href =
                    '/login?redirectPath=' + redirectPath;
            } else {
                reject(res);
            }
        })
        .catch(error => {
            reject(error);
        });
});

}

Visual Studio代码显示此错误

我的get函数如何只能返回PublicCompanyAPIResponseType？