Traceback (most recent call last):


 "./youtube-dl/youtube_dl/YoutubeDL.py", line 792, in extract_info

ie_result = ie.extract(url)


 "./youtube-dl/youtube_dl/extractor/common.py", line 508, in extract

ie_result = self._real_extract(url)


 "./youtube-dl/youtube_dl/extractor/youtube.py", line 1897, in _real_extract

raise ExtractorError(error_message, expected=True)
ExtractorError: This video is unavailable.

Traceback (most recent call last):


 "C:\Users\Alessandro\.conda\envs\keras\lib\site-packages\IPython\core\interactiveshell.py", line 3331, in run_code

self.sys_excepthook = old_excepthook


 "<ipython-input-12-572c6a0027da>", line 2, in <module>

PolynomialDecay})


 "C:\Users\Alessandro\.conda\envs\keras\lib\site-packages\tensorflow_core\python\keras\utils\generic_utils.py", line 306, in deserialize_keras_object

return cls.from_config(cls_config)


 "C:\Users\Alessandro\AppData\Roaming\Python\Python37\site-packages\tensorflow_model_optimization\python\core\sparsity\keras\pruning_schedule.py", line 134, in from_config

return cls(**config)
TypeError: __init__() got an unexpected keyword argument 'class_name'
