compare_fn              Get key comparison function of an hash table
default                 Default 'hashmap' values
default_hash_fn         String hashes for arbitrary R objects
delete                  Delete keys or key/value pairs from an hash
                        table.
has_key                 Key existence in hash tables
hash_fn                 Get hash function of an hash table
hashtable               Hash maps and sets
hashtable_methods       Methods for S3 classes 'hashmap' and 'hashset'
insert                  Insert keys or key/value pairs into an hash
                        table.
keys                    List all keys from an hash table
length.r2r_hashtable    Size of hash tables
on_missing_key          On missing key behaviour
query                   Query keys from an hash table.
subsetting_hashtables   Subsetting 'hashset's and 'hashmap's
values                  List all values from an hash map
