class_docstr: Context stores model relevant worker information
  Some fixed during load times and some set by the service
class_docstr_tok: ["Context","stores","model","relevant","worker","information","Some","fixed","during","load","times","and","some","set","by","the","service"]
code: def get_request_id(self, idx: int = 0) -> Optional[str]:
      if self.request_ids is None:
          return None
      return self.request_ids.get(idx)
  
imports: from typing import Dict, Optional, Tuple
label_desc: Use image node_id 7 for calling the Context obj's underlying member method code with example usage: obj.get_request_id(idx) and returns: self, None