class_docstr: Tensorforce error
class_docstr_tok: ["Tensorforce","error"]
code: def required_attribute(name, attribute):
      return TensorforceError(
          message="Required {name} attribute {attribute}.".format(
              name=name, attribute=attribute
          )
      )
  
file_path: tensorforce/tensorforce/exception.py
label_desc: Use image node_id 7 for calling the TensorforceError obj's underlying member method code with example usage: obj.required_attribute(name, attribute) and returns: TensorforceError