Set API keys for running models locally.
Examples
if (FALSE) { # \dontrun{
# Configure providers.
configure_provider("anthropic", Sys.getenv("ANTHROPIC_API_KEY"))
configure_provider("deepseek", Sys.getenv("DEEPSEEK_API_KEY"))
configure_provider("google_gemini", Sys.getenv("GEMINI_API_KEY"))
configure_provider("openai", Sys.getenv("OPENAI_API_KEY"))
configure_provider("ollama", Sys.getenv("OLLAMA_API_KEY"))
# Delete the provider for google_gemini.
configure_provider("google_gemini", NULL)
} # }
