Using global variables in API Designer

Hi all,

Need help in accessing global variables inside the API Designer.

We tried using it this way but none of it worked.

dataiku.set_remote_dss("https://DSS HOST:PORT/", "")

def api_py_function(param1):
    #approach 1
    global_variable = os.environ.get('var1', ${var1})  
    #approach 2
    param3 = dataiku.get_custom_variables(project_key="PROJECTKEY")["var1"]
    return param3