in train/train.py [0:0]
def save_tokenizer(tokenizer):
s3_client = boto3.client('s3')
s3_sourcedir = os.environ['SM_MODULE_DIR']
s3_bucket = s3_sourcedir.split("/")[2]
array_data = io.BytesIO()
pickle.dump(tokenizer,array_data)
array_data.seek(0)
s3_client.upload_fileobj(array_data,s3_bucket,"toxic_comments/tokenizer.pkl")