class_docstr: Context stores model relevant worker information
  Some fixed during load times and some set by the service
code: def get_sequence_id(self, idx: int) -> str:
      return self._request_processor[idx].get_request_property(
          "ts_request_sequence_id"
      )
  
imports: from typing import Dict, Optional, Tuple
label_desc: Use image node_id 18 for calling the Context obj's underlying member method code with example usage: obj.get_sequence_id(idx) and returns: self