transforming/batchtransformer.py

from typing import List

from video import YoutubeVideo
from transforming.transform import Transform
from utils import accepts_types

class BatchTransformer:
 
 """Class that applies multiple transforms to YouTube video object."""
 
 def __init__(self, transforms: List[Transform]) -> None:
 self._transforms = transforms
 
 @property
 def transforms(self) -> List[Transform]:
 return self._transforms
 
 @transforms.setter
 def transforms(self, transforms: List[Transform]) -> None:
 self._transforms = transforms
 
 @accepts_types(list)
 def apply(self, videos: List[YoutubeVideo]) -> List[YoutubeVideo]:
 for transform in self._transforms:
 videos = list(map(transform.apply, videos))
 return videos