class_docstr: Tensorforce error
class_docstr_tok: ["Tensorforce","error"]
code: def unexpected():
      return TensorforceError(message="Unexpected error!")
  
file_path: tensorforce/tensorforce/exception.py
label_desc: Use image node_id 2 for calling the TensorforceError obj's underlying member method code with example usage: obj.unexpected() and returns: TensorforceError