Builds a :class:`stacker.providers.base.Provider` suitable for
        operating on the given :class:`stacker.Stack`.

def build_provider(self, stack):
        """Builds a :class:`stacker.providers.base.Provider` suitable for
        operating on the given :class:`stacker.Stack`."""
        return self.provider_builder.build(region=stack.region,
                                           profile=stack.profile)