Get the default data for any entity (e.g. bundle or charm).

        @param entity_id The entity's id either as a reference or a string
        @param get_files Whether to fetch the files for the charm or not.
        @param channel Optional channel name.
        @param include_stats Optionally disable stats collection.
        @param includes An optional list of meta info to include, as a
            sequence of strings. If None, the default include list is used.

def entity(self, entity_id, get_files=False, channel=None,
               include_stats=True, includes=None):
        '''Get the default data for any entity (e.g. bundle or charm).

        @param entity_id The entity's id either as a reference or a string
        @param get_files Whether to fetch the files for the charm or not.
        @param channel Optional channel name.
        @param include_stats Optionally disable stats collection.
        @param includes An optional list of meta info to include, as a
            sequence of strings. If None, the default include list is used.
        '''
        if includes is None:
            includes = DEFAULT_INCLUDES[:]
        if get_files and 'manifest' not in includes:
            includes.append('manifest')
        if include_stats and 'stats' not in includes:
            includes.append('stats')
        return self._meta(entity_id, includes, channel=channel)