parameters: (self)
return_statement: return max(self._unref_times)
docstring: Last unreference timestamp of this tensor (long integer).
docstring_summary: Last unreference timestamp of this tensor (long integer).
docstring_tokens: Last unreference timestamp of this tensor ( long integer ) .
function: def last_unref(self):
      """Last unreference timestamp of this tensor (long integer)."""
      return max(self._unref_times)
function_tokens: def last_unref ( self ) : return max ( self . _unref_times )