Utils.FFT
val select_fft_domain : int -> int * int * int
val fft : Mavkit_bls12_381_polynomial.Domain.t -> Kzg.Bls.Poly.t -> Mavkit_bls12_381_polynomial.Evaluations.t
val ifft_inplace : Mavkit_bls12_381_polynomial.Domain.t -> Mavkit_bls12_381_polynomial.Evaluations.t -> Kzg.Bls.Poly.t