Function _inferModelProvider

_inferModelProvider(modelName: string): undefined | string
Attempts to infer the model provider based on the given model name.
Parameters
- modelName: string
  The name of the model to infer the provider for.
Returns undefined | string
The inferred model provider name, or undefined if unable to infer.
Example
```
_inferModelProvider("gpt-4"); // returns "openai"
_inferModelProvider("claude-2"); // returns "anthropic"
_inferModelProvider("unknown-model"); // returns undefined
```
- Defined in remotes/langchain-ai/langchainjs/v1/libs/langchain/src/chat_models/universal.ts:211