def METHOD_NAME(cls, schema, name):
    """
    Create an object based on the root tag name.
    @param schema: A schema object.
    @type schema: L{schema.Schema}
    @param name: The name.
    @type name: str
    @return: The created object.
    @rtype: L{XBuiltin}
    """
    fn = cls.tags.get(name)
    if fn is not None:
        return fn(schema, name)
    else:
        return XBuiltin(schema, name)