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ZRS(s�Base class for callbacks structure for svn.ra.open2.

  Ra users may pass an instance of this class as is to svn.ra.open2
  for some simple operations: as long as authentication is not
  required, auth_baton may be None, and some ra implementations do not
  use open_tmp_file at all.  These are not guarantees, however, and
  all but the simplest scripts should fill even these in.

  The wc_prop slots, on the other hand, are only necessary for commits
  and updates, and progress_func and cancel_func are always optional.

  A simple example:

  class Callbacks(svn.ra.Callbacks):
    def __init__(self, wc, username, password):
      self.wc = wc
      self.auth_baton = svn.core.svn_auth_open([
          svn.client.get_simple_provider(),
          svn.client.get_username_provider(),
          ])
      svn.core.svn_auth_set_parameter(self.auth_baton,
                                      svn.core.SVN_AUTH_PARAM_DEFAULT_USERNAME,
                                      username)
      svn.core.svn_auth_set_parameter(self.auth_baton,
                                      svn.core.SVN_AUTH_PARAM_DEFAULT_PASSWORD,
                                      password)
    def open_tmp_file(self, pool):
      path = '/'.join([self.wc, svn.wc.get_adm_dir(pool), 'tmp'])
      (fd, fn) = tempfile.mkstemp(dir=path)
      os.close(fd)
      return fn
    def cancel_func(self):
      if some_condition():
        return svn.core.SVN_ERR_CANCELLED
      return 0
  N(
t__name__t
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auth_batontget_wc_proptset_wc_proptpush_wc_proptinvalidate_wc_propst
progress_functcancel_functget_client_string(((s*/usr/lib/python2.7/dist-packages/svn/ra.pyR
!s$








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