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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 _percent_match(result, out, yP=None, *argl):
 """Returns the percent match for the specified prediction call; requires that the data was split before using an analyzed method. Args: out (dict):
 output dictionary to save the result to. """

    if len(argl) > 1:
        if yP is None:
            Xt = argl[1]
            key = id(Xt)
            if key in _splits:
                yP = _splits[key][3]
                
        if yP is not None:
            import math
            out["%"] = round(1.-sum(abs(yP - result))/float(len(result)), 3)