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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 copy_scubadir_file(self, name, source):
        '''Copies source into the scubadir

        Returns the container-path of the copied file
        '''
        dest = os.path.join(self.__scubadir_hostpath, name)
        assert not os.path.exists(dest)
        shutil.copy2(source, dest)

        return os.path.join(self.__scubadir_contpath, name)