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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 slt(computation: BaseComputation) -> None: """ Signed Lesser Comparison """

    left, right = map(
        unsigned_to_signed,
        computation.stack_pop(num_items=2, type_hint=constants.UINT256),
    )

    if left < right:
        result = 1
    else:
        result = 0

    computation.stack_push(signed_to_unsigned(result))