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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 insert_from_segmentlistdict(self, seglists, name, version = None, comment = None, valid=None):
 		""" 		Insert the segments from the segmentlistdict object 		seglists as a new list of "active" segments into this 		LigolwSegments object. The dictionary's keys are assumed 		to provide the instrument name for each segment list. A 		new entry will be created in the segment_definer table for 		the segment lists, and the dictionary's keys, the name, and 		comment will be used to populate the entry's metadata. 		"""

		for instrument, segments in seglists.items():
			if valid is None:
				curr_valid = ()
			else:
				curr_valid = valid[instrument]		
			self.add(LigolwSegmentList(active = segments, instruments = set([instrument]), name = name, version = version, comment = comment, valid = curr_valid))