class GenericMortalEra extends Tupleimport { GenericMortalEra } from "https://dotland.deno.dev/x/polkadot@0.2.45/types/index.types.ts"; ConstructorsnewGenericMortalEra(registry: Registry, value?: | MortalMethod | Uint8Array | number[] | string)PropertiesreadonlyencodedLength: numberreadonlyperiod: INumberreadonlyphase: INumberMethodsbirth(current: | BN | bigint | number | string): numberdeath(current: | BN | bigint | number | string): numbertoHuman(): anytoJSON(): anytoU8a(_isBare?: boolean): Uint8Array