code: def get_parameters(self):
          
          parenthesis = self.tokens[-1]
          for token in parenthesis.tokens:
              if isinstance(token, IdentifierList):
                  return token.get_identifiers()
              elif imt(token, i=(Function, Identifier), t=T.Literal):
                  return [token, ]
          return []
docs: Return a list of parameters.