import { IMMORTAL_ERA } from "https://dotland.deno.dev/x/polkadot@0.2.24/types/extrinsic/constants.ts";
x/polkadot/types/extrinsic/constants.ts>IMMORTAL_ERA
import { IMMORTAL_ERA } from "https://dotland.deno.dev/x/polkadot@0.2.24/types/extrinsic/constants.ts";