Traceback (most recent call last):
  File "C:\Users\boomg\Documents\workspace\ws-python\sales-agent\example_1.py", line 5, in <module>
    from agent import sales_agent_factory, CompanysContext
  File "C:\Users\boomg\Documents\workspace\ws-python\sales-agent\agent.py", line 6, in <module>
    from agents.extensions.models.litellm_model import LitellmModel
  File "C:\Users\boomg\Documents\workspace\ws-python\sales-agent\env\lib\site-packages\agents\extensions\models\litellm_model.py", line 8, in <module>
    import litellm.types
  File "C:\Users\boomg\Documents\workspace\ws-python\sales-agent\env\lib\site-packages\litellm\__init__.py", line 763, in <module>
    from .cost_calculator import completion_cost
  File "C:\Users\boomg\Documents\workspace\ws-python\sales-agent\env\lib\site-packages\litellm\cost_calculator.py", line 19, in <module>
    from litellm.litellm_core_utils.llm_cost_calc.utils import (
  File "C:\Users\boomg\Documents\workspace\ws-python\sales-agent\env\lib\site-packages\litellm\litellm_core_utils\llm_cost_calc\utils.py", line 9, in <module>
    from litellm.utils import get_model_info
  File "C:\Users\boomg\Documents\workspace\ws-python\sales-agent\env\lib\site-packages\litellm\utils.py", line 188, in <module>
    json_data = json.load(f)
  File "C:\Users\boomg\AppData\Local\Programs\Python\Python310\lib\json\__init__.py", line 293, in load
    return loads(fp.read(),
  File "C:\Users\boomg\AppData\Local\Programs\Python\Python310\lib\encodings\cp1252.py", line 23, in decode
    return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x81 in position 1980: character maps to <undefined>

openai-agent==0.0.14
openai-agents[litellm]==0.0.14