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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_controllers(self):
 """Iterate through the installed controller entry points and import the module and assign the handle to the CLI._controllers dict. :return: dict """

        controllers = dict()
        for pkg in pkg_resources.iter_entry_points(group=self.CONTROLLERS):
            LOGGER.debug('Loading %s controller', pkg.name)
            controllers[pkg.name] = importlib.import_module(pkg.module_name)
        return controllers