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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 user_agent(self):
 """ its a user agent string! """

        version = ""
        project_root = os.path.dirname(os.path.abspath(__file__))
        with open(os.path.join(project_root, 'VERSION')) as version_file:
            version = version_file.read().strip()

        return "Python Snow Api Client (Version %s)" % version