! @return The size of the BSON-encoded unsigned integer in @a j */

Checks that the weak_ptr can be locked and that the connection is still active

@brief clears the binary subtype @sa https://json.nlohmann.me/api/byte_container_with_subtype/clear_subtype/

Connects a std::function to the signal. The returned value can be used to disconnect the function again.

Establish a deferred connection between signal and slot, where ConnectionEvaluator object is used to queue all the connection to evaluate later. The r

Data access

can't use conversion operator because of ambiguity

static*/