I am trying to access the following system tables to generate a DBU consumption report, but I am not seeing this table in the system schema. Could you please help me how to access it?

system.billing.inventory, system.billing.workspaces, system.billing.job_usage, system.billing.workflow_usage, system.billing.notebook_usage, system.billing.sql_usage, system.billing.dlt_usage, system.billing.dashboard_usage