code: def api_key_get(params, request_path, _async=False):
      
      method = 'GET'
      timestamp = datetime.datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%S')
      params.update({
          'AccessKeyId': ACCESS_KEY,
          'SignatureMethod': 'HmacSHA256',
          'SignatureVersion': '2',
          'Timestamp': timestamp
      })
  
      host_url = TRADE_URL
      host_name = urllib.parse.urlparse(host_url).hostname
      host_name = host_name.lower()
      secret_sign = createSign(params, method, host_name, request_path,
                                       SECRET_KEY)
      params['Signature'] = secret_sign
      if PRIVATE_KEY:
          params['PrivateSignature'] = createPrivateSign(secret_sign, PRIVATE_KEY)
      url = host_url + request_path
      return http_get_request(url, params, _async=_async)
docs: from 火币demo, 构造get请求并调用get方法
      :param params:
      :param request_path:
      :return: