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export interface TestVector {  expectedLength: number;  expected: Uint8Array;  input: Uint8Array;  key?: Uint8Array;  salt?: Uint8Array;  personal?: Uint8Array;}
function hexWrite(buf: Uint8Array, hexStr: string): Uint8Array {  const strLen: number = hexStr.length;  if (strLen % 2 !== 0) throw new TypeError("Invalid hex string");  for (let i: number = 0; i < strLen / 2; ++i) {    const parsed = parseInt(hexStr.substr(i * 2, 2), 16);    if (Number.isNaN(parsed)) throw new Error("Invalid byte");    buf[i] = parsed;  }  return buf;}
export function parseTestVector(vector: {  [key: string]: any;}): TestVector {  return {    expectedLength: vector.outlen,    expected: hexWrite(new Uint8Array(vector.out.length / 2), vector.out),    input: hexWrite(new Uint8Array(vector.input.length / 2), vector.input),    key:      vector.key.length === 0        ? undefined        : hexWrite(new Uint8Array(vector.key.length / 2), vector.key),    salt:      vector.salt.length === 0        ? undefined        : hexWrite(new Uint8Array(vector.salt.length / 2), vector.salt),    personal:      vector.personal.length === 0        ? undefined        : hexWrite(new Uint8Array(vector.personal.length / 2), vector.personal)  };}