How to use the pykeepass.icons function in pykeepass

def test_set_and_get_fields(self):
        time = datetime.now().replace(microsecond=0)
        changed_time = time + timedelta(hours=9)
        changed_string = 'changed_'
        entry = Entry(
            'title',
            'username',
            'password',
            url='url',
            notes='notes',
            tags='tags',
            expires=True,
            expiry_time=time,
            icon=icons.KEY,
            kp=self.kp
        )
        entry.title = changed_string + 'title'
        entry.username = changed_string + 'username'
        entry.password = changed_string + 'password'
        entry.url = changed_string + 'url'
        entry.notes = changed_string + 'notes'
        entry.expires = False
        entry.expiry_time = changed_time
        entry.icon = icons.GLOBE
        entry.set_custom_property('foo', 'bar')
        entry.set_custom_property('multiline', 'hello\nworld')

        self.assertEqual(entry.title, changed_string + 'title')
        self.assertEqual(entry.username, changed_string + 'username')
        self.assertEqual(entry.password, changed_string + 'password')

icon=icons.KEY
        )
        results = self.kp.find_entries_by_title(unique_str + 'title')
        self.assertEqual(len(results), 1)
        results = self.kp.find_entries_by_title(unique_str + 'title', first=True)

        self.assertEqual(results.title, unique_str + 'title')
        self.assertEqual(results.username, unique_str + 'user')
        self.assertEqual(results.password, unique_str + 'pass')
        self.assertEqual(results.url, unique_str + 'url')
        self.assertEqual(results.notes, unique_str + 'notes')
        self.assertEqual(results.tags, [unique_str + 'tags'])
        self.assertTrue(results.uuid != None)
        # convert naive datetime to utc
        expiry_time_utc = expiry_time.replace(tzinfo=tz.gettz()).astimezone(tz.gettz('UTC'))
        self.assertEqual(results.icon, icons.KEY)

        sub_group = self.kp.add_group(self.kp.root_group, 'sub_group')
        self.kp.move_entry(entry, sub_group)
        results = self.kp.find_entries(path='sub_group/test_add_entry_title', first=True)
        self.assertEqual(results.title, entry.title)

        self.kp.delete_entry(entry)
        results = self.kp.find_entries_by_title(unique_str + 'title', first=True)
        self.assertIsNone(results)

        # test adding entry which exists in another group
        subgroup = self.kp.find_groups(name='subgroup2', first=True)
        self.kp.add_entry(subgroup, title='foobar_entry', username='foobar', password='foobar')

        # test adding entry to root which exists in subgroup
        self.kp.add_entry(subgroup, title='foobar_entry2', username='foobar', password='foobar')