Converts the light curve to a FITS file in the Kepler/TESS file format.
The FITS file will be returned as a HDUList object.
If a path is specified then the file will also be written to disk.
Location where the FITS file will be written, which is optional.
Whether or not to overwrite the file, if path is set.
The column name in the FITS file where the light curve flux data
should be stored. Typical values are FLUX or SAP_FLUX.
Extra keywords or columns to include in the FITS file.
Arguments of type str, int, float, or bool will be stored as
keywords in the primary header.
Arguments of type np.array or list will be stored as columns
in the first extension.
Returns an HDUList object.