code: def Kerr_factor(final_mass, distance):
      
  
      # Convert solar masses to meters
      mass = final_mass * lal.MSUN_SI * lal.G_SI / lal.C_SI**2
      # Convert Mpc to meters
      dist = distance * 1e6 * lal.PC_SI
  
      return mass / dist
docs: Return the factor final_mass/distance (in dimensionless units) for Kerr
      ringdowns