class_docstr: A Shrinker object manages a single value and a predicate it should
  satisfy, and attempts to improve it in some direction, making it smaller
  and simpler.
class_docstr_tok: ["A","Shrinker","object","manages","a","single","value","and","a","predicate","it","should","satisfy",",","and","attempts","to","improve","it","in","some","direction",",","making","it","smaller","and","simpler","."]
code: def calls(self):
      return len(self.__seen)
  
file_path: catboost/contrib/python/hypothesis/py2/hypothesis/internal/conjecture/shrinking/common.py
imports: from __future__ import absolute_import, division, print_function
label_desc: Use image node_id 2 for calling the Shrinker obj's underlying member method code with example usage: obj.calls() and returns: len