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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_safari_navigation_bar_height(self):
 """Get the height of Safari navigation bar :returns: height of navigation bar """

        status_bar_height = 0
        if self.driver_wrapper.is_ios_test() and self.driver_wrapper.is_web_test():
            # ios 7.1, 8.3
            status_bar_height = 64
        return status_bar_height