function genAesKeyimport { genAesKey } from "https://deno.land/x/somefn@v0.27.0/js/aes.ts"; genAesKey(type: "AES-CBC" | "AES-GCM", k?: | string | Uint8Array | 128 | 192 | 256): Promise<[CryptoKey, Uint8Array]>生成 key 功能 功能点: 随机生成 key. 支持传入的 base64 编码 key. 支持传入的二进制 key. Parameterstype: "AES-CBC" | "AES-GCM"optionalk: | string | Uint8Array | 128 | 192 | 256 = [UNSUPPORTED]ReturnsPromise<[CryptoKey, Uint8Array]>