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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 __generate_file(self, file_path):
 """ Generate the file at the file_path desired. Creates any needed directories on the way. returns the absolute path of the file. """

        file_path = os.path.expanduser(file_path)
        if not os.path.exists(os.path.dirname(file_path)):
            self.logger.debug("Directories missing! Creating directories for %s..." % file_path)
            os.makedirs(os.path.dirname(file_path))
        if not os.path.exists(file_path):
            open(file_path, "w+").close()
        return file_path