code: def _add_op(op):
      key = arg_scope_func_key(op)
      if key not in _DECORATED_OPS:
          _DECORATED_OPS[key] = _kwarg_names(op)
  
file_path: tflearn/tflearn/vendor/arg_scope.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from tensorflow.python.util import tf_contextlib
  from tensorflow.python.util import tf_decorator
label_desc: Use image node_id 6 for calling a global function with example usage: _add_op(op) without return types