old_contents: # -*- coding: utf-8 -*-
  """
  github3.gists.history
  ---------------------
  
  Module containing the logic for the GistHistory object.
  
  """
  from __future__ import unicode_literals
  
  from ..models import GitHubCore
  from ..users import User
  
  
  class GistHistory(GitHubCore):
  
      """Thisobject represents one version (or revision) of a gist.
  
      Two history instances can be checked like so::
  
          h1 == h2
          h1 != h2
  
      And is equivalent to::
  
          h1.version == h2.version
          h1.version != h2.version
  
      """
  
      def _update_attributes(self, history):
          self._api = history.get('url', '')
  
          #: SHA of the commit associated with this version
          self.version = history.get('version', '')
  
          #: user who made these changes
          self.user = User(history.get('user') or {}, self)
  
          #: dict containing the change status; see also: deletions, additions,
          #: total
          self.change_status = history.get('change_status', {})
  
          #: number of additions made
          self.additions = self.change_status.get('additions', 0)
  
          #: number of deletions made
          self.deletions = self.change_status.get('deletions', 0)
  
          #: total number of changes made
          self.total = self.change_status.get('total', 0)
  
          #: datetime representation of when the commit was made
          self.committed_at = self._strptime(history.get('committed_at'))
  
      def _repr(self):
          return '<Gist History [{0}]>'.format(self.version)
  
      def get_gist(self):
          """Retrieve the gist at this version.
  
          :returns: :class:`Gist <github3.gists.gist.Gist>`
  
          """
          from .gist import Gist
          json = self._json(self._get(self._api), 200)
          return Gist(json, self)
  
new_contents: # -*- coding: utf-8 -*-
  """
  github3.gists.history
  ---------------------
  
  Module containing the logic for the GistHistory object.
  
  """
  from __future__ import unicode_literals
  
  from ..models import GitHubCore
  from ..users import User
  
  
  class GistHistory(GitHubCore):
  
      """Thisobject represents one version (or revision) of a gist.
  
      Two history instances can be checked like so::
  
          h1 == h2
          h1 != h2
  
      And is equivalent to::
  
          h1.version == h2.version
          h1.version != h2.version
  
      """
  
      def _update_attributes(self, history):
          self._api = history.get('url', '')
  
          #: SHA of the commit associated with this version
          self.version = history.get('version', '')
  
          #: user who made these changes
          self.user = User(history.get('user') or {}, self)
  
          #: dict containing the change status; see also: deletions, additions,
          #: total
          self.change_status = history.get('change_status', {})
  
          #: number of additions made
          self.additions = self.change_status.get('additions', 0)
  
          #: number of deletions made
          self.deletions = self.change_status.get('deletions', 0)
  
          #: total number of changes made
          self.total = self.change_status.get('total', 0)
  
          #: datetime representation of when the commit was made
          self.committed_at = self._strptime(history.get('committed_at'))
  
      def _repr(self):
          return '<Gist History [{0}]>'.format(self.version)
  
      def get_gist(self):
          """Retrieve the gist at this version.
  
          :returns: :class:`Gist <github3.gists.gist.Gist>`
  
          """
          from .gist import Gist
          json = self._json(self._get(self._api), 200)
          return self._instance_or_null(Gist, json)
  
subject: Use _instance_or_null in github3.gists.history