| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/purpleidea/mgmt/lang/funcs/ref | Package ref implements reference counting for the graph API and function engine. |
| github.com/purpleidea/mgmt/lang/interfaces | Package interfaces contains the common interfaces used in the mcl language. |
| github.com/purpleidea/mgmt/pgraph | Package pgraph represents the internal "pointer graph" that we use. |
| sort | Package sort provides primitives for sorting slices and user-defined collections. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |