docs: function decryptAPIMResponse(body, private_key) {
    var key = Crypto.privateDecrypt(
      { key: private_key,
        padding: constants.RSA_PKCS1_PADDING },
      new Buffer(body.key, 'base64')
    );
  
    var iv = new Buffer(16);
    iv.fill(0);
    var decipher = Crypto.createDecipheriv('aes-256-cbc', key, iv);
    var plainText = decipher.update(body.cipher, 'base64', 'utf8');
    plainText += decipher.final('utf8');
  
    return JSON.parse(plainText);
  }