UpdatePublisherAsset.
        [Preview API] Update publisher asset like logo. It accepts asset file as an octet stream and file name is passed in header values.
        :param object upload_stream: Stream to upload
        :param str publisher_name: Internal name of the publisher
        :param str asset_type: Type of asset. Default value is 'logo'.
        :param String file_name: Header to pass the filename of the uploaded data
        :rtype: {str}

def update_publisher_asset(self, upload_stream, publisher_name, asset_type=None, file_name=None, **kwargs):
        """UpdatePublisherAsset.
        [Preview API] Update publisher asset like logo. It accepts asset file as an octet stream and file name is passed in header values.
        :param object upload_stream: Stream to upload
        :param str publisher_name: Internal name of the publisher
        :param str asset_type: Type of asset. Default value is 'logo'.
        :param String file_name: Header to pass the filename of the uploaded data
        :rtype: {str}
        """
        route_values = {}
        if publisher_name is not None:
            route_values['publisherName'] = self._serialize.url('publisher_name', publisher_name, 'str')
        query_parameters = {}
        if asset_type is not None:
            query_parameters['assetType'] = self._serialize.query('asset_type', asset_type, 'str')
        if "callback" in kwargs:
            callback = kwargs["callback"]
        else:
            callback = None
        content = self._client.stream_upload(upload_stream, callback=callback)
        response = self._send(http_method='PUT',
                              location_id='21143299-34f9-4c62-8ca8-53da691192f9',
                              version='5.0-preview.1',
                              route_values=route_values,
                              query_parameters=query_parameters,
                              content=content,
                              media_type='application/octet-stream')
        return self._deserialize('{str}', self._unwrap_collection(response))