Function resolve 

pub fn resolve(
    api: &Api,
    name_override: Option<&str>,
    input_basename: Option<&str>,
) -> ResolvedPackage

Resolve package identity for a generator.

Name precedence (first non-empty wins):

1. explicit per-target name_override (e.g. python.package_name),
2. api.package.name,
3. the IDL file stem (input_basename),
4. DEFAULT_NAME.

Version: api.package.version → DEFAULT_VERSION. All other metadata is taken verbatim from the package: block (absent → None/empty).