class_docstr: Class for storing a causal estimand, typically as a result of the identification step.
code: def set_identifier_method(self, identifier_name: str):
      self.identifier_method = identifier_name
  
file_path: dowhy/dowhy/causal_identifier/identified_estimand.py
imports: import copy
  from typing import List, Optional
  import sympy
  from dowhy.utils.api import parse_state
label_desc: Use image node_id 2 for calling the IdentifiedEstimand obj's underlying member method code with example usage: obj.set_identifier_method(identifier_name) without return types