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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 sample(self, bqm, num_reads=10):
 """Give random samples for a binary quadratic model. Variable assignments are chosen by coin flip. Args: bqm (:obj:`.BinaryQuadraticModel`):
 Binary quadratic model to be sampled from. num_reads (int, optional, default=10):
 Number of reads. Returns: :obj:`.SampleSet` """

        values = tuple(bqm.vartype.value)

        def _itersample():
            for __ in range(num_reads):
                sample = {v: choice(values) for v in bqm.linear}
                energy = bqm.energy(sample)

                yield sample, energy

        samples, energies = zip(*_itersample())

        return SampleSet.from_samples(samples, bqm.vartype, energies)