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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 fit(self, struct1, struct2):
 """ Fit two structures. Args: struct1 (Structure):
 1st structure struct2 (Structure):
 2nd structure Returns: True or False. """

        struct1, struct2 = self._process_species([struct1, struct2])

        if not self._subset and self._comparator.get_hash(struct1.composition) \
                != self._comparator.get_hash(struct2.composition):
            return None

        struct1, struct2, fu, s1_supercell = self._preprocess(struct1, struct2)
        match = self._match(struct1, struct2, fu, s1_supercell,
                            break_on_match=True)

        if match is None:
            return False
        else:
            return match[0] <= self.stol