|  | @@ -362,7 +362,7 @@ class Transportation(Item):
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				|  |  |              assert type(distance) is Distance
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				|  |  |              self.distance = distance
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				|  |  |          if route_map is not None:
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				|  |  | -            assert type(route_map) is str
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				|  |  | +            assert type(route_map) is bytes
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				|  |  |              self.route_map = route_map
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				|  |  |          if passenger is not None:
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				|  |  |              assert type(passenger) is Person
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