How to use the pypuppetdb.QueryBuilder.InOperator function in pypuppetdb

with pytest.raises(APIError):
            op = InOperator('certname')
            op.add_array(inv1)

        with pytest.raises(APIError):
            op = InOperator('certname')
            op.add_array(inv2)

        with pytest.raises(APIError):
            op = InOperator('certname')
            op.add_array(arr)
            op.add_array(arr)

        with pytest.raises(APIError):
            op = InOperator('certname')

            op.add_array(arr)
            ex = ExtractOperator()
            ex.add_field("certname")
            op.add_query(ex)

def test_events_endpoint(self):
        assert str(InOperator('certname')) == \
            '["in", "certname"]'

        op = InOperator('certname')
        ex = ExtractOperator()
        ex.add_field("certname")
        op.add_query(ex)

        assert repr(op) == 'Query: ["in", "certname", ' \
            '["extract", ["certname"]]]'

def test_fromoperator(self):
        op = InOperator('certname')
        ex = ExtractOperator()
        ex.add_field(["certname", "facts"])
        fr = FromOperator("facts")
        fr.add_query(ex)
        fr.add_offset(10)
        op.add_query(fr)

        assert repr(op) == 'Query: ["in", "certname", ' \
            '["from", "facts", ["extract", ' \
            '["certname", "facts"]], ["offset", 10]]]'

        # last example on page
        # https://puppet.com/docs/puppetdb/5.1/api/query/v4/ast.html

        op = InOperator('certname')
        ex = ExtractOperator()

def test_add_array(self):
        arr = [1, "2", 3]
        op = InOperator('certname')
        op.add_array(arr)

        assert repr(op) == 'Query: ["in", "certname", ' \
            '["array", [1, "2", 3]]]'

op = InOperator('certname')
        ex = ExtractOperator()
        ex.add_field(["certname", "facts"])
        fr = FromOperator("facts")
        fr.add_query(ex)
        fr.add_offset(10)
        op.add_query(fr)

        assert repr(op) == 'Query: ["in", "certname", ' \
            '["from", "facts", ["extract", ' \
            '["certname", "facts"]], ["offset", 10]]]'

        # last example on page
        # https://puppet.com/docs/puppetdb/5.1/api/query/v4/ast.html

        op = InOperator('certname')
        ex = ExtractOperator()
        ex.add_field('certname')
        fr = FromOperator('fact_contents')
        nd = AndOperator()
        nd.add(EqualsOperator("path",
                              ["networking", "eth0", "macaddresses", 0]))
        nd.add(EqualsOperator("value", "aa:bb:cc:dd:ee:00"))
        ex.add_query(nd)
        fr.add_query(ex)
        op.add_query(fr)

        assert str(op) == '["in", "certname", ' \
                          '["from", "fact_contents", ' \

def test_events_endpoint(self):
        assert str(InOperator('certname')) == \
            '["in", "certname"]'

        op = InOperator('certname')
        ex = ExtractOperator()
        ex.add_field("certname")
        op.add_query(ex)

        assert repr(op) == 'Query: ["in", "certname", ' \
            '["extract", ["certname"]]]'

def test_multiple_add_query(self):
        with pytest.raises(APIError):
            op = InOperator('certname')
            op.add_query(ExtractOperator())
            op.add_query(ExtractOperator())

def test_invalid_add_array(self):
        arr = [1, 2, 3]
        inv1 = [1, [2, 3]]
        inv2 = []

        with pytest.raises(APIError):
            op = InOperator('certname')
            op.add_array(inv1)

        with pytest.raises(APIError):
            op = InOperator('certname')
            op.add_array(inv2)

        with pytest.raises(APIError):
            op = InOperator('certname')
            op.add_array(arr)
            op.add_array(arr)

        with pytest.raises(APIError):
            op = InOperator('certname')

            op.add_array(arr)
            ex = ExtractOperator()

def add(self, query):
        if type(query) == list:
            for i in query:
                self.add(i)
        elif type(query) == str:
            self.operations.append(json.loads(query))
        elif isinstance(query, (BinaryOperator, InOperator,
                                BooleanOperator)):
            self.operations.append(query.json_data())
        else:
            raise APIError("Can only accept fixed-string queries, arrays " +
                           "or operator objects")