Update conversation_logic.py

conversation_logic.py

@@ -5,7 +5,7 @@ from typing import Any, Dict, List, Optional, Set
 
 from context_parser import detect_intent, intent_to_help_mode
 from formatting import format_reply, format_explainer_response
-from generator_engine import GeneratorEngines
+from generator_engine import GeneratorEngine
 from models import RetrievedChunk, SolverResult
 from quant_solver import is_quant_question
 from solver_router import route_solver