Function read_register_export 

pub fn read_register_export(
    plugin: &mut Plugin,
) -> Result<RegistrationManifest, ExtismError>

Call a live plugin’s register export and parse the response.

The register export takes no input and returns canonical-JSON matching RegistrationManifest. The host reads this after capability negotiation and converts each entry into an adapter implementing the corresponding capability trait.

Errors

• ExtismError::InvalidPlugin if the export doesn’t exist or the underlying Extism call fails.
• ExtismError::OutputDecode if the returned JSON is malformed.