This read-create object holds the name of an AAA accounting method, such as radius, tacacs+, acct_rad, or none, at a given priority within a generic accounting method list, keyed by list type/name/priority. An admin sets this to build the ordered fallback chain of accounting servers used for exec, network, or system accounting events. For example, in the default exec list an admin might configure priority-1 method 'radius' and priority-2 method 'acct_rad' so accounting failover happens automatically.