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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 device_configuration(self, pending=False, use_included=False):
 """Get a specific device configuration. A device can have at most one loaded and one pending device configuration. This returns that device_configuration based on a given flag. Keyword Args: pending(bool):
 Fetch the pending configuration or return the loaded one. use_included(bool):
 Use included resources in this device configuration. Returns: The requested loaded or pending configuration or None if no device configuration is found. """

        device_configs = self.device_configurations(use_included=use_included)
        for device_config in device_configs:
            if device_config.is_loaded() is not pending:
                return device_config
        return None