code: def set_params(self, params: Dict[str, str]):
      self.params = params
      return self
  
imports: from pydantic import BaseModel
  from typing import Dict, List, Optional, Tuple, Union
  import abc
  import pandas
  import numpy
label_desc: Use image node_id 1 for calling the Operand obj's underlying member method code with example usage: obj.set_params(params) and returns: self