64 bit numbers are implicitly converted to 32 bit

[Kakadus]

Hi,
I wanted to use OpenGymBoxContainer<uint64_t> but the numbers were converted to 32 bit after loading the box from its protobuf message. 64bit wide numbers are handled in the corresponding python code:

else if (name == "uint8_t" || name == "uint16_t" || name == "uint32_t" || name == "uint64_t")
    {
        m_dtype = ns3_ai_gym::UINT;
    }

and c++ code

else if (name == "uint8_t" || name == "uint16_t" || name == "uint32_t" || name == "uint64_t")
    {
        m_dtype = ns3_ai_gym::UINT;
    }

but the protobuf messages only have 32bit wide integers. This does not work....

message BoxDataContainer {
	Dtype dtype = 1;
	repeated uint32 shape = 2;

	repeated int32 intData = 3;
	repeated uint32 uintData = 4;
	repeated float floatData = 5;
	repeated double doubleData = 6;
}

This is the same case with DiscreteContainer.