async def METHOD_NAME(client):
    """Test case for update_user
    Updated user
    """
    body = {}
    headers = { 
        'Content-Type': 'application/json',
    }
    response = await client.request(
        method='PUT',
        path='/v2/user/{username}'.format(username='username_example'),
        headers=headers,
        json=body,
        )
    assert response.status == 200, 'Response body is : ' + (await response.read()).decode('utf-8')