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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 init(self, bootstrap_with):
 """ This method serves for initializing the hitting set solver with a given list of sets to hit. Concretely, the hitting set problem is encoded into partial MaxSAT as outlined above, which is then fed either to a MaxSAT solver or an MCS enumerator. :param bootstrap_with: input set of sets to hit :type bootstrap_with: iterable(iterable(obj)) """


        # formula encoding the sets to hit
        formula = WCNF()

        # hard clauses
        for to_hit in bootstrap_with:
            to_hit = list(map(lambda obj: self.idpool.id(obj), to_hit))

            formula.append(to_hit)

        # soft clauses
        for obj_id in six.iterkeys(self.idpool.id2obj):
            formula.append([-obj_id], weight=1)

        if self.htype == 'rc2':
            # using the RC2-A options from MaxSAT evaluation 2018
            self.oracle = RC2(formula, solver=self.solver, adapt=False,
                    exhaust=True, trim=5)
        elif self.htype == 'lbx':
            self.oracle = LBX(formula, solver_name=self.solver, use_cld=True)
        else:
            self.oracle = MCSls(formula, solver_name=self.solver, use_cld=True)