I'm attempting to give API Credentials access to a user via IAM. However, I'm unable to find an existing Predefined Product Role that encapsulates these permissions. The closest I can find is roles/
iam.serviceAccountTokenCreator
under Service Account but that only allows me to grant access to:
Impersonate service accounts (create OAuth2 access tokens, sign blobs or JWTs, etc).
I don't want to create a Service account, but simply another user account which can sign in and manage the OAuth credentials / access keys.