Correct, these functions are meant to configure any device settings, the module and parameter address are the ones from libcaer, so you can look up the codes here:
For the packet container interval, as you would do:
libcaerHandle.configSet(CAER_HOST_CONFIG_PACKETS, CAER_HOST_CONFIG_PACKETS_MAX_CONTAINER_INTERVAL, 1000);
In dv-processing that becomes:
deviceHandle.deviceConfigSet(CAER_HOST_CONFIG_PACKETS, CAER_HOST_CONFIG_PACKETS_MAX_CONTAINER_INTERVAL, 1000);
In the C++ code. In the Python code the libcaer defines are not imported, so you'll have to look up the codes in the libcaer C header files and just use the integers directly, like:
pythonDeviceHandle.deviceConfigSet(-3, 1, 1000)