Resultant spectra from the five spectral parameter distributions explored in this work to find the XLF that fits all observed constraints. Top left: spectra of an unabsorbed object; top right: spectra of a Compton-thin object; bottom: spectra of a Compton-thick object. The same parameters are used for both Compton-thin and Compton-thick objects. All the spectra have an intrinsic X-ray 2−10 keV luminosity of 10⁴⁴ erg s⁻¹. The values of the parameters come from the Swift-BAT 70-month survey (Ricci et al. 2017) and other spectral fittings (Nandra & Pounds 1994; Malizia et al. 2014; Ueda et al. 2014).