EXCLUDE USING and tstzrange

Hi,

I'm having difficulty finding the right part of the docs for this one.

Could someone kindly clarify:

create table test (
test_id text,
test_range tstzrange);

Will "EXCLUDE USING gist (test_id WITH =, test_range WITH && )" work as expected or do I need to use "EXCLUDE USING gist (test_id WITH =, test_range WITH TIME ZONE && )" to ensure the timezone is correctly taken into account during comparison ?

Thanks !

Laura