static mrpeg.peg.null_result_alt(_cls, gwas_beta: Array, eqtl: Array, perturb: Array, d: Array, v: Array, inv_d: Array, inv_v: Array, inv_dvd: Array, rng_key: PRNGKeyArray) Create new instance of null_result_alt(gwas_beta, eqtl, perturb, d, v, inv_d, inv_v, inv_dvd, rng_key)