The photom step has the following optional arguments.

--inverse (boolean, default=False)

A flag to indicate whether the math operations used to apply the correction should be inverted (i.e. divide the calibration data into the science data, instead of the usual multiplication).

--source_type (string, default=None)

Force the processing to use the given source type (POINT, EXTENDED), instead of using the information contained in the input data.

--mrs_time_correction (boolean, default=True)

A flag to indicate whether to turn on the time and wavelength dependent correction for MIRI MRS data.