the handle is a record: true
  format       openai
  base_url     http://localhost:11434
  model        llama3.2:3b
  temperature  0
  max_tokens   1024
  timeout      60 seconds
  retries      3

after two assignments:
  temperature  0.9
  max_tokens   200

two handles, two temperatures: 0.9 and 0

llm.anthropic wants a key: ANTHROPIC_API_KEY
llm.local does not:        keyless = true
