regarding NETWORK parameter in omm:match_trajectory algorithm

[rneppi]

I’m using the OSM Map Matching plugin (version 1.1) in QGIS and I’m currently integrating the omm:match_trajectory algorithm into a custom plugin via Python.

When using the plugin via the GUI, the NETWORK parameter seems to be automatically populated – I don’t need to explicitly select a network layer.

My question:
What exactly is used as the NETWORK input when the algorithm is executed from the GUI without manually specifying it?
Is this a predefined internal layer, a temporary layer, or perhaps a layer bundled with the plugin?

And is there a way to reference or access this default network layer programmatically in Python (e.g. by name, by path, or through a helper function)?

Thank you very much in advance – and thank you for providing this helpful plugin!