33   def __init__(self, data=None):  argument
45   def __iter__(self):  argument
49   def __eq__(self, other):  argument
52   def __ne__(self, other):  argument
55   def __nonzero__(self):  argument
58   def __str__(self):  argument
64   def __repr__(self):  argument
68   def extra(self):  argument
101   def _parse_internal(self, text):  argument
142   def to_string(self):  argument
152   def to_string_raw(self):  argument
156   def union(self, other):  argument
174   def intersect(self, other):  argument
192   def subtract(self, other):  argument
211   def overlaps(self, other):  argument
231   def size(self):  argument
247   def map_within(self, other):  argument
276   def extend(self, n):  argument
298   def first(self, n):  argument
330   def next_item(self):  argument