API Reference@dortdb/coreinternal-fnsOn this pageinternal-fns Low-level helper functions used when building and transforming logical plans - argument combinators (ret1, ret2, toPair), type guards, plan-operator cloning helpers, and small array/object utilities. Type Aliases RecursiveArray Functions assertMaxOne clone cloneIfPossible cloneWithArgs createMapLiteral flat isCalc isId isNotNull pickArr propLookup ret1 ret2 retI0 retI1 toArray toPair