def wout_meta(self, *args, **kwargs):
md = self.meta_data<EOL>for a in args:<EOL><INDENT>if pimms.is_vector(a):<EOL><INDENT>for u in a:<EOL><INDENT>md = md.discard(u)<EOL><DEDENT><DEDENT>else:<EOL><INDENT>md = md.discard(a)<EOL><DEDENT><DEDENT>return self if md is self.meta_data else self.copy(meta_data=md)<EOL>
obj.wout_meta(...) removes the given arguments (keys) from the object's current meta_data
map and yields a new object with the new meta-data.