code: def print_summary(self, stream=sys.stdout, indent="", recurse_level=2):
          
          Link.print_summary(self, stream, indent, recurse_level)
          if recurse_level > 0:
              recurse_level -= 1
              indent += "  "
              stream.write("\n")
              self._scatter_link.print_summary(stream, indent, recurse_level)
docs: Print a summary of the activity done by this `Link`.
  
          Parameters
          ----------
  
          stream : `file`
              Stream to print to
  
          indent : str
              Indentation at start of line
  
          recurse_level : int
              Number of recursion levels to print