code: def lower_comparisons_to_between(match_query):
      
      new_match_traversals = []
  
      for current_match_traversal in match_query.match_traversals:
          new_traversal = []
          for step in current_match_traversal:
              if step.where_block:
                  expression = step.where_block.predicate
                  new_where_block = Filter(_lower_expressions_to_between(expression))
                  new_traversal.append(step._replace(where_block=new_where_block))
              else:
                  new_traversal.append(step)
  
          new_match_traversals.append(new_traversal)
  
      return match_query._replace(match_traversals=new_match_traversals)
docs: Return a new MatchQuery, with all eligible comparison filters lowered to between clauses.