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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 build_attrs(self, *args, **kwargs):
 """Add select2's tag attributes."""

        self.attrs.setdefault('data-minimum-input-length', 1)
        self.attrs.setdefault('data-tags', 'true')
        self.attrs.setdefault('data-token-separators', '[",", " "]')
        return super(Select2TagMixin, self).build_attrs(*args, **kwargs)