parse_args

petpal.cli.cli_reference_tissue_models.parse_args()

Defines and parses command-line arguments.

This function creates an ArgumentParser object, defines command-line arguments using that object, and then calls its parse_args method and returns the results.

The function defines a set of sub-commands (srtm, frtm, mrtm, mrtm2, mrtm-original), each of which has a different set of requiring arguments. Each sub-command represents a different analysis method and requires different inputs.

Returns:

argparse.Namespace – An object representing the command-line arguments. The object’s attributes are the various command-line arguments, where the attribute name matches the option string.

Raises:

• argparse.ArgumentError – If the argument is already defined.

• argparse.ArgumentTypeError – If the argument type conversion function raises this exception.

• SystemExit – If invalid arguments are passed or -h/–help is chosen.