Fix failing tests

tests/llm_test.py

@@ -5,6 +5,7 @@ from crewai.llm import LLM
 from crewai.utilities.token_counter_callback import TokenCalcHandler
 
 
+# TODO: This test fails without print statement, which makes me think that something is happening asynchronously that we need to eventually fix and dive deeper into at a later date
 @pytest.mark.vcr(filter_headers=["authorization"])
 def test_llm_callback_replacement():
     llm = LLM(model="gpt-4o-mini")
@@ -12,17 +13,21 @@ def test_llm_callback_replacement():
     calc_handler_1 = TokenCalcHandler(token_cost_process=TokenProcess())
     calc_handler_2 = TokenCalcHandler(token_cost_process=TokenProcess())
 
-    llm.call(
+    result1 = llm.call(
         messages=[{"role": "user", "content": "Hello, world!"}],
         callbacks=[calc_handler_1],
     )
+    print("result1:", result1)
     usage_metrics_1 = calc_handler_1.token_cost_process.get_summary()
+    print("usage_metrics_1:", usage_metrics_1)
 
-    llm.call(
+    result2 = llm.call(
         messages=[{"role": "user", "content": "Hello, world from another agent!"}],
         callbacks=[calc_handler_2],
     )
+    print("result2:", result2)
     usage_metrics_2 = calc_handler_2.token_cost_process.get_summary()
+    print("usage_metrics_2:", usage_metrics_2)
 
     # The first handler should not have been updated
     assert usage_metrics_1.successful_requests == 1