isSuccess correct value to check response in trpc?

  const {
    isLoading,
    error,
    isSuccess,
    mutate: createClient,
  } = trpc.client.create.useMutation()

  const onSubmit: SubmitHandler<CreateClientInput> = async (data) => {
    createClient(data)
    if (isSuccess) {
      toast.success('Success.')
      // router.push('/clients')
    }
    if (error) toast.error('An error occured.')
  }