'toast' is possibly 'null'.

Type '{ success: (message: string) => void; warning: (message: string) => void; info: (message: string) => void; error: (message: string) => void; remove: (id: number) => void; }' is not assignable to type 'null'.

'toast' is possibly 'null'.

Property 'type' does not exist on type 'never'.

Process completed with exit code 1.