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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 load_matches(self):
 """Load matches of the previous failed execution from the recovery file. :returns matches: a list of matches in JSON format """

        if not self.exists():
            return []

        matches = []
        with open(self.location(), 'r') as f:
            for line in f.readlines():
                match_obj = json.loads(line.strip("\n"))
                if match_obj['processed']:
                    continue

                matches.append(match_obj)

        return matches