pub type EllCoeff<P> = (Fp2<<P as Bls12Config>::Fp2Config>, Fp2<<P as Bls12Config>::Fp2Config>, Fp2<<P as Bls12Config>::Fp2Config>);pub type EllCoeff<P> = (Fp2<<P as Bls12Config>::Fp2Config>, Fp2<<P as Bls12Config>::Fp2Config>, Fp2<<P as Bls12Config>::Fp2Config>);