def METHOD_NAME(self):
    cmd = "heap set-arena &main_arena"
    target = _target("heap")
    self.assertFailIfInactiveSession(gdb_run_cmd(cmd, target=target))
    res = gdb_run_silent_cmd(cmd, target=target, after=["heap arenas"])
    self.assertNoException(res)
    self.assertIn("Arena(base=", res)