@cached_property<EOL><INDENT>def froms(self):<DEDENT>
eax = {}<EOL>for name, config in six.iteritems(self._metrics):<EOL><INDENT>from_ = self._get_property(config, '<STR_LIT>', default=self.stdout)<EOL>eax.setdefault(from_, {})[name] = config<EOL><DEDENT>return eax<EOL>
Group metrics according to the `from` property.