Reset autoconvert register to factory default, thereby undoing any calls to register_autoconvert_function() by the user.
register_autoconvert_function()
reset_autoconvert_register()
NULL
Other class hierarchy operations: add_class_hierarchy_cache, register_autoconvert_function, reset_class_hierarchy_cache
add_class_hierarchy_cache
register_autoconvert_function
reset_class_hierarchy_cache