move none check
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@ -231,7 +231,10 @@ def _get_taker_token_in_amount(
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child_transfers: List[Transfer],
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) -> int:
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if len(child_transfers) != 2 and trace.error == None:
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if trace.error is not None:
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return 0
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if len(child_transfers) != 2:
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raise ValueError(
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f"A settled order should consist of 2 child transfers, not {len(child_transfers)}."
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)
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