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import os import sys import urllib.request import json import pandas as pd import matplotlib.pyplot as plt import time import random import requests import hashlib import hmac import base64 class Signature: @staticmethod def generate(timestamp, method, uri, secret_key): message = "{}.{}.{}".format(timestamp, method, uri) hash = hmac.new(bytes(secret_key, "utf-8"), bytes(message, "utf-8"), hashli..

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