function u8aToBufferimport { u8aToBuffer } from "https://dotland.deno.dev/x/polkadot@0.2.35/util/u8a/toBuffer.ts"; u8aToBuffer(value?: Uint8Array | null): BufferExamples import { u8aToBuffer } from 'https://deno.land/x/polkadot@0.2.35/util/mod.ts'; console.log('Buffer', u8aToBuffer('0x123480001f')); Parametersoptionalvalue: Uint8Array | nullReturnsBuffer