@classmethod<EOL><INDENT>def from_dict_(cls, conf_dict):<DEDENT>
return cls(**{name: Section(**opts)<EOL>for name, opts in conf_dict.items()})<EOL>
Use a dictionary to create a :class:`ConfigurationManager`.

        Args:
            conf_dict (dict of dict of :class:`ConfOpt`): the first level of
                keys should be the section names. The second level should be
                the option names. The values are the options metadata.

        Returns:
            :class:`ConfigurationManager`: a configuration manager with the
            requested sections and options.