Fix issue #2353: Add tests for importing LLM from crewai

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

tests/test_import_llm.py

@@ -0,0 +1,23 @@
+import pytest
+
+def test_import_llm_from_crewai():
+    """Test that LLM can be imported directly from crewai."""
+    try:
+        from crewai import LLM
+        assert LLM is not None
+    except ImportError as e:
+        pytest.fail(f"Failed to import LLM from crewai: {e}")
+
+def test_bedrock_llm_creation():
+    """Test that a Bedrock LLM can be created."""
+    try:
+        from crewai import LLM
+        
+        # Just test the object creation, not the actual API call
+        bedrock_llm = LLM(
+            model="bedrock/anthropic.claude-3-sonnet-20240229-v1:0"
+        )
+        assert bedrock_llm is not None
+        assert bedrock_llm.model == "bedrock/anthropic.claude-3-sonnet-20240229-v1:0"
+    except Exception as e:
+        pytest.fail(f"Failed to create Bedrock LLM: {e}")