human
I wrote the below code

    @roles('r1', 'r2')
    @hosts('a')
    def command():
        pass
    with settings(dedupe_hosts=False):
        true_eq_hosts(command, ['a', 'a', 'b', 'b', 'c'], env={'roledefs': fake_roles})

What's a good function header?
 Here's a good function header?
assistant
#Here's a good function header.

def test_host_role_merge_deduping_off():