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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 binop_return_dtype(op, left, right):
 """ Compute the expected return dtype for the given binary operator. Parameters op : str left : numpy.dtype Dtype of left hand side. right : numpy.dtype Dtype of right hand side. Returns ------- outdtype : numpy.dtype The dtype of the result of `left <op> right`. """

    if is_comparison(op):
        if left != right:
            raise TypeError(
                "Don't know how to compute {left} {op} {right}.\n"
                "Comparisons are only supported between Factors of equal "
                "dtypes.".format(left=left, op=op, right=right)
            )
        return bool_dtype

    elif left != float64_dtype or right != float64_dtype:
        raise TypeError(
            "Don't know how to compute {left} {op} {right}.\n"
            "Arithmetic operators are only supported between Factors of "
            "dtype 'float64'.".format(
                left=left.name,
                op=op,
                right=right.name,
            )
        )
    return float64_dtype