code: def __call__(
      self,
      task_state: TaskState,
      **kwargs,
  ) -> SolverResult:
      msgs = [
          {"role": "system", "content": task_state.task_description},
      ] + [msg.to_dict() for msg in task_state.messages]
  
      completion_result = self.completion_fn(prompt=msgs, **kwargs)
      return SolverResult(completion_result.get_completions()[0])
  
file_path: evals/evals/solvers/openai_completion_solver.py
imports: from typing import Any, Dict, Union
  from evals.completion_fns.openai import OpenAICompletionFn
  from evals.solvers.solver import OpenAISolver, SolverResult
  from evals.task_state import TaskState
label_desc: Use image node_id 2 for calling the OpenAICompletionSolver obj's underlying member method code with example usage: obj.__call__(task_state) and returns: SolverResult