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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 subset(self, sel0=None, sel1=None):
 """Make a sub-selection of variants and haplotypes. Parameters sel0 : array_like Boolean array or array of indices selecting variants. sel1 : array_like Boolean array or array of indices selecting haplotypes. Returns ------- out : HaplotypeArray See Also -------- HaplotypeArray.take, HaplotypeArray.compress """

        return subset_haplotype_array(self, sel0, sel1, cls=type(self), subset=subset)