Function registerProvider

registerProvider(name: string, providerFn: (modelName: string) => unknown): void
Register a custom LLM provider for use in prompt files.
Parameters
- name: string
  Provider name (used in prompt config provider field)
- providerFn: (modelName: string) => unknown
  Factory function that creates a model from a model name string
Returns void
Example
```
import { createAmazonBedrock } from '@ai-sdk/amazon-bedrock';
import { registerProvider } from '@output.ai/llm';

registerProvider('bedrock', createAmazonBedrock({ region: 'us-east-1' }));
```