code: def delete_sources(self, cuts=None, distance=None,
                         skydir=None, minmax_ts=None, minmax_npred=None,
                         exclude=None, square=False, names=None):
          
  
          srcs = self.roi.get_sources(skydir=skydir, distance=distance, cuts=cuts,
                                      minmax_ts=minmax_ts, minmax_npred=minmax_npred,
                                      exclude=exclude, square=square,
                                      coordsys=self.config[
                                          'binning']['coordsys'],
                                      names=names)
  
          for s in srcs:
              self.delete_source(s.name, build_fixed_wts=False)
  
          if self.like is not None:
              # Build fixed model weights in one pass
              for c in self.components:
                  c.like.logLike.buildFixedModelWts()
  
              self._update_roi()
  
          return srcs
docs: Delete sources in the ROI model satisfying the given
          selection criteria.
  
          Parameters
          ----------
          cuts : dict
              Dictionary of [min,max] selections on source properties.
  
          distance : float
              Cut on angular distance from ``skydir``.  If None then no
              selection will be applied.
  
          skydir : `~astropy.coordinates.SkyCoord`
              Reference sky coordinate for ``distance`` selection.  If
              None then the distance selection will be applied with
              respect to the ROI center.
  
          minmax_ts : list
              Select sources that have TS in the range [min,max].  If
              either min or max are None then only a lower (upper) bound
              will be applied.  If this parameter is none no selection
              will be applied.
  
          minmax_npred : list
              Select sources that have npred in the range [min,max].  If
              either min or max are None then only a lower (upper) bound
              will be applied.  If this parameter is none no selection
              will be applied.
  
          square : bool
              Switch between applying a circular or square (ROI-like)
              selection on the maximum projected distance from the ROI
              center.
  
          names : list            
              Select sources matching a name in this list.
  
          Returns
          -------
          srcs : list
              A list of `~fermipy.roi_model.Model` objects.