Upload Image in UpdateUserProfileInformation.php

I am getting undefined variable request when trying to add an upload function to UpdateUserProfileInformation.php Laravel Fortify.

class UpdateUserProfileInformation implements UpdatesUserProfileInformation
{
    /**
     * Validate and update the given user's profile information.
     *
     * @param  mixed  $user
     * @param  array  $input
     * @return void
     */
    public function update($user, array $input)
    {
        Validator::make($input, [
            'name' => ['required', 'string', 'max:255'],
            'email' => [
                'required',
                'string',
                'email',
                'max:255',
            'address'=>['required','string','max:255'],
            'city' => ['required', 'string', 'max:255'],
            'state' => ['required', 'string', 'max:255'],
            'zipcode' => ['required', 'string', 'max:255'],
            'homephone' => ['required', 'string', 'max:255'],
            'cellphone' => ['required', 'string', 'max:255'],
            // 'avatar' => ['mimes:jpg,jpeg,png,gif','max:4096'],
            
                Rule::unique('users')->ignore($user->id),
            ],


        ])->validateWithBag('updateProfileInformation');
        

        if ($input['email'] !== $user->email &&
            $user instanceof MustVerifyEmail) {
            $this->updateVerifiedUser($user, $input);
        } else {
            if ($request()->hasFile('avatar')) {
                $image = $request()->file('avatar');
                $filename = time() .'.'. $image->getClientOriginalExtension();
                $path = public_path('dashboard/images/profile/');
                Image::make($image)->save($path.$filename);
                if ($user->image !== 'default.png') {
                    File::delete($path.$user->avatar);
                }
              

            $user->forceFill([
            'name' => $input['name'],
            'email' => $input['email'],
            'address' => $input['address'],
            'city' => $input['city'],
            'state' => $input['state'],
            'zipcode' => $input['zipcode'],
            'homephone' => $input['homephone'],
            'cellphone' => $input['cellphone'],
            'avatar' => $user->avatar = $filename,

            
            ])->save();
            alert()->success('Profile Updated','User Profile Updated Successfully!!!');

        }
    }
    }
    /**
     * Update the given verified user's profile information.
     *
     * @param  mixed  $user
     * @param  array  $input
     * @return void
     */
    protected function updateVerifiedUser($user, array $input)
    {
        if ($request()->hasFile('avatar')) {
            $image = $request()->file('avatar');
            $filename = time() .'.'. $image->getClientOriginalExtension();
            $path = public_path('dashboard/images/profile/');
            Image::make($image)->save($path.$filename);
            if ($user->image !== 'default.png') {
                File::delete($path.$user->avatar);
            }
            $user->avatar = $filename;
       
       
        $user->forceFill([
            'name' => $input['name'],
            'email' => $input['email'],
            'address' => $input['address'],
            'city' => $input['city'],
            'state' => $input['state'],
            'zipcode' => $input['zipcode'],
            'homephone' => $input['homephone'],
            'cellphone' => $input['cellphone'],
            'avatar' => $user->avatar = $filename,
               
        ])->save();
     
        alert()->success('Profile Updated','User Profile Updated Successfully!!!');


        $user->sendEmailVerificationNotification();
    }
}
}