ConstReadonlyGROUP: "GROUP"ReadonlyIDENTITY_TYPE_UNSPECIFIED: "IDENTITY_TYPE_UNSPECIFIED"Default value, not used
ReadonlyPG_ONLY: "PG_ONLY"A role without a Databricks identity.
ReadonlySERVICE_PRINCIPAL: "SERVICE_PRINCIPAL"A service principal in a Databricks workspace.
ReadonlyUSER: "USER"A user in a Databricks workspace.
A group in a Databricks workspace.