fix: resolve lint issues with deprecated typing imports

- Add missing type imports (Dict, List, Type, DefaultDict, Tuple) to fix F821 undefined name errors
- Consolidate typing imports to avoid duplicate imports
- Remove unused imports to fix F401 and F811 errors
- Maintain quota limit handling functionality while fixing CI lint failures

Co-Authored-By: João <joao@crewai.com>

src/crewai/agent.py

@@ -3,16 +3,12 @@ import subprocess
 import time
 from typing import (
     Any,
-    Callable,
-    Dict,
-    List,
     Literal,
     Optional,
-    Sequence,
-    Tuple,
-    Type,
     Union,
 )
+from typing import Dict, List, Tuple, Type
+from collections.abc import Callable, Sequence
 
 from pydantic import Field, InstanceOf, PrivateAttr, model_validator
 

src/crewai/agents/crew_agent_executor.py

@@ -1,4 +1,6 @@
-from typing import Any, Callable, Dict, List, Optional, Union
+from typing import Any, Optional, Union
+from typing import Dict, List
+from collections.abc import Callable
 
 from crewai.agents.agent_builder.base_agent import BaseAgent
 from crewai.agents.agent_builder.base_agent_executor_mixin import CrewAgentExecutorMixin

src/crewai/llm.py

@@ -8,16 +8,13 @@ from collections import defaultdict
 from contextlib import contextmanager
 from typing import (
     Any,
-    DefaultDict,
-    Dict,
-    List,
     Literal,
     Optional,
-    Type,
     TypedDict,
     Union,
     cast,
 )
+from typing import DefaultDict, Dict, List, Type
 from datetime import datetime
 from dotenv import load_dotenv
 from litellm.types.utils import ChatCompletionDeltaToolCall
@@ -35,10 +32,7 @@ from crewai.events.types.tool_usage_events import (
     ToolUsageFinishedEvent,
     ToolUsageErrorEvent,
 )
-from crewai.utilities.exceptions import (
-    LLMContextLengthExceededException,
-    LLMQuotaLimitExceededException,
-)
+from crewai.utilities.exceptions import LLMQuotaLimitExceededException
 
 with warnings.catch_warnings():
     warnings.simplefilter("ignore", UserWarning)