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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def MultiDeleteAttributes(self, subjects, attributes, start=None, end=None, sync=True):
 """Remove all specified attributes from a list of subjects. Args: subjects: The list of subjects that will have these attributes removed. attributes: A list of attributes. start: A timestamp, attributes older than start will not be deleted. end: A timestamp, attributes newer than end will not be deleted. sync: If true we block until the operation completes. """

    for subject in subjects:
      self.DeleteAttributes(
          subject, attributes, start=start, end=end, sync=sync)