any clue why im getting:

gcp:organizations/getIAMPolicy:getIAMPolicy returned an error: grpc: error while marshaling: proto: repeated field Values has nil element

with:

scheduler_policy_func_invoker = organizations.get_iam_policy(bindings=[
        {
            "members": [job_account_member],
            "role": "roles/cloudfunctions.invoker",
        },
    ])

What is

job_account_member

in your code?