How to use the fsps._fsps.driver.get_filter_data function in fsps

"""
        Return effective wavelengths, and vega and solar magnitudes
        of all filters.

        :returns lambda_eff:
            Effective wavelength of each filter.

        :returns magvega:
            The AB magnitude of Vega (used to convert between AB and Vega
            systems).

        :returns magsun:
            The AB absolute magnitude of the Sun.
        """
        NBANDS = driver.get_nbands()
        lambda_eff, magvega, magsun = driver.get_filter_data(NBANDS)
        return lambda_eff, magvega, magsun