docstr: Returns the number of recurrences in this set. It will have go
  trough the whole recurrence, if this hasn't been done before. 
docstr_tok: ["Returns","the","number","of","recurrences","in","this","set",".","It","will","have","go","trough","the","whole","recurrence",",","if","this","has","n't","been","done","before","."]
code: def count(self):
      """Returns the number of recurrences in this set. It will have go
      trough the whole recurrence, if this hasn't been done before."""
      if self._len is None:
          for x in self:
              pass
      return self._len
  
imports: import calendar
  import datetime
  import heapq
  import itertools
  import re
  import sys
  from functools import wraps
  from warnings import warn
  from six import advance_iterator, integer_types
  from six.moves import _thread, range
  from ._common import weekday
label_desc: Use image node_id 7 for calling the rrulebase obj's underlying member method code with example usage: obj.count() and returns: self