def remove_members(self, to_remove):
if isinstance(to_remove, string_types) orhasattr(to_remove, "<STR_LIT:id>"):<EOL><INDENT>warn("<STR_LIT>")<EOL>to_remove = [to_remove]<EOL><DEDENT>self._members.difference_update(to_remove)<EOL>
Remove objects from the group.

Parameters
----------
to_remove : list
    A list of cobra objects to remove from the group