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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 bucket_and_path(self, url):
 """Split an S3-prefixed URL into bucket and path."""

        url = compat.as_str_any(url)
        if url.startswith("s3://"):
            url = url[len("s3://"):]
        idx = url.index("/")
        bucket = url[:idx]
        path = url[(idx + 1):]
        return bucket, path