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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 get_users(deployment_name, token_manager=None, app_url=defaults.APP_URL):
 """ get all users in the deployment specified """

    deployment_id = get_deployment_id(deployment_name,
                                      token_manager=token_manager,
                                      app_url=app_url)

    headers = token_manager.get_access_token_headers()
    deployment_url = environment.get_deployment_url(app_url=app_url)
    response = requests.get('%s/api/v1/deployments/%s/accounts' %
                            (deployment_url, deployment_id),
                            headers=headers)

    if response.status_code == 200:
        return response.json()
    else:
        raise JutException('Error %s: %s' % (response.status_code, response.text))