See which Roles contain a GCLOUD Permisson I'd like to see wich Roles in iam yield a certain permission.
In other words, for a given permission (like billing.accounts.updateUsageExportSpec) I want to know a list of Roles, that satisfy this permission.
Looks like only the roles/billing.admin:
https://cloud.google.com/iam/docs/understanding-roles#billing-roles