NavigableMap

NavigableMap objects returned by TreeMap’s methods are views on the calling TreeMap instance. NavigableMap objects supports these methods:

get(key), put(key, value), remove(key), size(), is_empty(), comparator(), ceiling_entry(key), ceiling_key(key), descending_key_set(), descending_map(), first_entry(), floor_entry(key), floor_key(key), head_map(to_key, inclusive=False), higher_entry(key), higher_key(key), last_entry(), lower_entry(key, lower_key(key), navigable_key_set(), poll_first_entry(), poll_last_entry(), sub_map(from_key, to_key, from_inclusive=True, to_inclusive=False), tail_map(from_key, inclusive=True), comparator(), entry_set(), first_key(), last_key(), key_set(), values()

Consult the TreeMap section for more details.