Prints information about the Dimensioned object, including the
        number and type of objects contained within it and information
        about its dimensions.

def info(self):
        """
        Prints information about the Dimensioned object, including the
        number and type of objects contained within it and information
        about its dimensions.
        """
        if (len(self.values()) > 0):
            info_str = self.__class__.__name__ +\
                       " containing %d items of type %s\n" % (len(self.keys()),
                                                              type(self.values()[0]).__name__)
        else:
            info_str = self.__class__.__name__ + " containing no items\n"
        info_str += ('-' * (len(info_str)-1)) + "\n\n"
        aliases = {v: k for k, v in self._dim_aliases.items()}
        for group in self._dim_groups:
            dimensions = getattr(self, group)
            if dimensions:
                group = aliases[group].split('_')[0]
                info_str += '%s Dimensions: \n' % group.capitalize()
            for d in dimensions:
                dmin, dmax = self.range(d.name)
                if d.value_format:
                    dmin, dmax = d.value_format(dmin), d.value_format(dmax)
                info_str += '\t %s: %s...%s \n' % (d.pprint_label, dmin, dmax)
        print(info_str)