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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def __protocolize(base_url):
 """Internal add-protocol-to-url helper"""

        if not base_url.startswith("http://") and not base_url.startswith("https://"):
            base_url = "https://" + base_url

        # Some API endpoints can't handle extra /'s in path requests
        base_url = base_url.rstrip("/")
        return base_url