issue #3903

[Harshit-7373]

Using .url() on page object results in "expression is not callable, Type 'String' has no call signatures." typescript error #3903.

github- harshit-7373

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• Before marking your PR for review, please test and verify your changes by making appropriate modifications to any of the Nightwatch example tests (present in examples/tests directory of the project) and running them. ecosia.js and duckDuckGo.js are good examples to work with.
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