Method query

test/exec/test_any_sender.cpp:53–57

    ex::inplace_stop_token token_{};

    [[nodiscard]]
    auto query(get_address_t) const noexcept -> void const *
    {
      return object_;
    }

    [[nodiscard]]
    auto query(ex::get_stop_token_t) const noexcept -> ex::inplace_stop_token