LabeledPolynomialDSL2
fun <C> LabeledPolynomialSpace<C, Ring<C>>.LabeledPolynomialDSL2(initialCapacity: Int? = null, block: DSL2LabeledPolynomialBuilder<C>.() -> Unit): LabeledPolynomial<C>
fun <C> LabeledRationalFunctionSpace<C, Ring<C>, LabeledPolynomialSpace<C, Ring<C>>>.LabeledPolynomialDSL2(initialCapacity: Int? = null, block: DSL2LabeledPolynomialBuilder<C>.() -> Unit): LabeledPolynomial<C>