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shall we add a test for it or update some existing tests?

@pankajastro good point, I will add some tests to cover this parameter

@pankajastro I found one test for this operator, doesn't seem a good idea to create a new test case just for this parameter. If you think it's necessary then I can create a separate one.

For now, I just added the new parameter to the test as well. What do you think?

Awesome work, congrats on your first merged pull request! You are invited to check our Issue Tracker for additional contributions.