Wanting to know workflow of OpenSFM

I am trying to understand, how the opensfm works when i use

Command Line Source according to the documentation
bin/opensfm command source

Example
bin/opensfm extract_metadata image/path

My understanding

1. Run opensfm(Linux)/opensfm.dat(Windows) with command
2. opensfm calls opensfm_main.py with command & data_path

There is no args inside opensfm_main.py where are the arguments captured?

This is what is called when opensfm_main python file is called

if __name__ == "__main__":
    commands.command_runner(
        commands.opensfm_commands, create_default_dataset_context, dataset_choices=["opensfm"]
    )

I am finding it hard to know how and where command meta_data is being captured and how is it proceeding further

Looking forward for guidance

Thank You

Start with opensfm_main.py and the commands.command_runner call shown in the issue, then trace the command and data_path flow for extract_metadata. Read the linked Command Line Source documentation alongside that entry point. Done would be a clear explanation or documentation update showing where the metadata command arguments are captured and how processing proceeds.