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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 profile(self, fields=None, sex=None):
 """ Generates a complete profile. If "fields" is not empty, only the fields in the list will be returned """

        if fields is None:
            fields = []

        d = {
            "job": self.generator.job(),
            "company": self.generator.company(),
            "ssn": self.generator.ssn(),
            "residence": self.generator.address(),
            "current_location": (self.generator.latitude(), self.generator.longitude()),
            "blood_group": "".join(self.random_element(list(itertools.product(["A", "B", "AB", "O"], ["+", "-"])))),
            "website": [self.generator.url() for _ in range(1, self.random_int(2, 5))],
        }

        d = dict(d, **self.generator.simple_profile(sex))
        # field selection
        if len(fields) > 0:
            d = {k: v for k, v in d.items() if k in fields}

        return d