31   constexpr invocable_with_telemetry(invocable_with_telemetry&& other)  in invocable_with_telemetry()  argument
33       : f_(std::move(other.f_)),  in invocable_with_telemetry()
34 …      telemetry_((assert(other.telemetry_ != nullptr), std::exchange(other.telemetry_, nullptr))) {  in invocable_with_telemetry()
38   constexpr invocable_with_telemetry(invocable_with_telemetry const& other)  in invocable_with_telemetry()  argument
40       : f_(other.f_), telemetry_((assert(other.telemetry_ != nullptr), other.telemetry_)) {  in invocable_with_telemetry()
44   constexpr invocable_with_telemetry& operator=(invocable_with_telemetry&& other)
48     assert(&other != this);
49     assert(other.telemetry_ != nullptr);
51     f_         = std::move(other.f_);
52     telemetry_ = std::exchange(other.telemetry_, nullptr);
58   constexpr invocable_with_telemetry& operator=(invocable_with_telemetry const& other)
62     assert(&other != this);
63     assert(other.telemetry_ != nullptr);
65     f_         = other.f_;
66     telemetry_ = other.telemetry_;