fil/docs/snippets/elixir/plugins/extractor_registration.md

Document extractor registration is not available in the Elixir binding. Custom extractors must be implemented in Rust using the DocumentExtractor trait and registered in the Rust core.

To use custom extractors in Elixir:

1. Implement the extractor in Rust using the DocumentExtractor trait
2. Register the extractor in the Rust core's registry
3. Call the extraction functions from Elixir

See the Rust plugin documentation for implementing custom DocumentExtractor plugins.