code: def range(self, gte, lt):
  		
  		
  		if self._combining:  # We are a field-compound query fragment, e.g. (Foo.bar & Foo.baz).
  			print("Combining", self._combining, self._field)
  			return reduce(self._combining, (q.range(gte, lt) for q in self._field))
  		
  		# Optimize this away in production; diagnosic aide.
  		if __debug__ and _simple_safety_check(self._field, '$eq'):  # pragma: no cover
  			raise NotImplementedError("{self!r} does not allow range comparison.".format(self=self))
  		
  		return (self >= gte) & (self < lt)
docs: Matches values that are between a minimum and maximum value, semi-inclusive.
  		
  			Document.field.range(4, 12)
  		
  		This will find documents with a field whose value is greater than or equal to 4, and less than 12.
  		
  		Comparison operator: {$gte: gte, $lt: lt}