class_docstr: Fake for CompetitionDatastoreClient.
class_docstr_tok: ["Fake","for","CompetitionDatastoreClient","."]
docstr: Returns string representation of all stored entities.
docstr_tok: ["Returns","string","representation","of","all","stored","entities","."]
code: def __str__(self):
      """Returns string representation of all stored entities."""
      buf = StringIO()
      for entity in self.entities.values():
          buf.write("Entity {0}:\n".format(entity.key.flat_path))
          buf.write("    {0}\n".format(dict(entity)))
      return buf.getvalue()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import copy
  from io import StringIO
  import six
label_desc: Use image node_id 12 for calling the FakeDatastoreClient obj's underlying member method code with example usage: obj.__str__() and returns: buf