code: def buckets(self, start, end):
      '''
      Calculate the buckets within a starting and ending timestamp.
      '''
      start_bucket = self.to_bucket(start)
      end_bucket = self.to_bucket(end)
      return range(start_bucket, end_bucket+1f buckets(self, start, end):
      '''
      Calculate the buckets within a starting and ending timestamp.
      '''
      start_bucket = self.to_bucket(start)
      end_bucket = self.to_bucket(end)
      return range(start_bucket, end_bucket+1)
docs: Calculate the buckets within a starting and ending timestamp.