(self)
return len(self.files)
compute the length of the dataset
        Returns: len => length of dataset
compute the length of the dataset
        Returns: len => length of dataset
compute the length of the dataset Returns : len = > length of dataset
def __len__(self) -> int:
        """
        compute the length of the dataset
        Returns: len => length of dataset
        """
        return len(self.files)
def __len__ ( self ) -> int : return len ( self . files )