feat: bonus material add OpenAILLM

[nerdai]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Files with missing lines	Coverage Δ
src/llm_agents_from_scratch/llms/ollama/llm.py	100.00% <ø> (ø)
...rc/llm_agents_from_scratch/llms/openai/__init__.py	100.00% <100.00%> (ø)
src/llm_agents_from_scratch/llms/openai/errors.py	100.00% <100.00%> (ø)
src/llm_agents_from_scratch/llms/openai/llm.py	100.00% <100.00%> (ø)
src/llm_agents_from_scratch/llms/openai/utils.py	100.00% <100.00%> (ø)
...c/llm_agents_from_scratch/notebook_utils/pandas.py	100.00% <100.00%> (ø)
src/llm_agents_from_scratch/utils.py	100.00% <100.00%> (ø)

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