def newContainer(self, objname, obj, container):
raise NotImplementedError('<STR_LIT>')<EOL>
Make a new container.

**abstract method**

Arguments:

    objname (any): record reference.

    obj (any): object to be serialized into the record; useful only if
        the type of the record depends on the nature of the object.

    container (any): container.

Returns:

    any: reference (address in the store) of the new container.