docs: def _read_inversion_results(self, tomodir):
          """Import resistivity magnitude/phase and real/imaginary part of
          conductivity for all iterations
          """
          basedir = tomodir + os.sep + 'inv' + os.sep
          print(basedir)
          inv_mag = sorted(glob(basedir + 'rho*.mag'))
          inv_pha = sorted(glob(basedir + 'rho*.pha'))
          inv_sig = sorted(glob(basedir + 'rho*.sig'))
  
          assert len(inv_mag) == len(inv_pha)
          assert len(inv_mag) == len(inv_sig)
  
          pids_mag = [self.parman.load_inv_result(filename) for filename in
                      inv_mag]
          pids_pha = [self.parman.load_inv_result(filename) for filename in
                      inv_pha]
          pids_sig = [self.parman.load_inv_result(filename, columns=[0, 1]) for
                      filename in inv_sig]
          self.assignments['inversion'] = {
              'rmag': pids_mag,
              'rpha': pids_pha,
              'cre_cim': pids_sig,
          }