code: def __str__(self):
      extras = []
      if self.categorical:
          if self.binary:
              extras += [f"success: {self.success}"]
          else:
              extras += [f"reference: {self.reference}"]
      return self.make_str(extras)
  
file_path: bambi/bambi/terms/response.py
imports: import formulae.terms
  from bambi.terms.base import BaseTerm
  from bambi.terms.utils import is_response_of_kind
label_desc: Use image node_id 13 for calling the ResponseTerm obj's underlying member method code with example usage: obj.__str__() and returns: self