class_docstr: Create a callback with some lambdas.
class_docstr_tok: ["Create","a","callback","with","some","lambdas","."]
code: def __str__(self):
      strs = []
      if self._cb_setup_graph is not None:
          strs.append("setup_graph=" + str(self._cb_setup_graph))
      if self._cb_before_train is not None:
          strs.append("before_train=" + str(self._cb_before_train))
      if self._cb_trigger is not None:
          strs.append("trigger=" + str(self._cb_trigger))
      if self._cb_after_train is not None:
          strs.append("after_train=" + str(self._cb_after_train))
      return "CallbackFactory({})".format(", ".join(strs))
  
imports: from abc import ABCMeta
  import six
  from ..compat import tfv1
  from ..tfutils.common import get_op_or_tensor_by_name
label_desc: Use image node_id 6 for calling the CallbackFactory obj's underlying member method code with example usage: obj.__str__() and returns: str