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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 list_users(self):
    
        ''' a method to list all the user ids of all users in the bucket '''
        
    # construct url
        url = self.bucket_url + '/_user/'

    # send request and unwrap response
        response = requests.get(url)
        response = response.json()

        return response