KeyCase: Sets the case in which keys are stored

KeyError: Report an error if the requested key does not exist?

SizeGuess: The expected size of the KeyMap.

SortBy: Determines how keys are sorted in a KeyMap.

MapLocked: Prevent new entries being added to the KeyMap?

astMapCopy: Copy all entries from one KeyMap into another

astMapCopyEntry: Copy a single entry from one KeyMap into another

astMapDefined: Does a KeyMap contain a defined value for a key?

astMapGet0$<$X$>$: Get a named scalar entry from a KeyMap

astMapGet1$<$X$>$: Get a named vector entry from a KeyMap

astMapGetC: Get a scalar or vector entry as a single string.

astMapGetElem$<$X$>$: Get an element of a named vector entry from a KeyMap

astMapHasKey: Does the KeyMap contain a named entry?

astMapKey: Return the key name at a given index in the KeyMap

astMapLenC: Get the length of a named character entry in a KeyMap

astMapLength: Get the length of a named entry in a KeyMap

astMapPut0$<$X$>$: Add a new scalar entry to a KeyMap

astMapPut1$<$X$>$: Add a new vector entry to a KeyMap

astMapPutElem$<$X$>$: Puts a value into a vector entry in a KeyMap

astMapPutU: Add a new entry to a KeyMap with an undefined value

astMapRemove: Removed a named entry from a KeyMap

astMapRename: Rename an existing entry in a KeyMap

astMapSize: Get the number of entries in a KeyMap

astMapType: Return the data type of a named entry in a map