Error handling

import {
  AnyLLMError,
  AuthenticationError,
  RateLimitError,
  UnsupportedOperationError,
  completion,
} from "any-llm-ts";

try {
  await completion({
    provider: "openai",
    model: "gpt-4.1-mini",
    messages: [{ role: "user", content: "Hello" }],
  });
} catch (error) {
  if (error instanceof AuthenticationError) {
    // Replace or refresh credentials.
  } else if (error instanceof RateLimitError) {
    console.error(error.retryAfter);
  } else if (error instanceof UnsupportedOperationError) {
    // Choose a provider that supports the operation.
  } else if (error instanceof AnyLLMError) {
    console.error(error.provider, error.statusCode, error.code);
  } else {
    throw error;
  }
}