docs: def get_target_extraction_context(self, build_file_path: str) -> dict:
          """Return a build file parser target extraction context.
  
          The target extraction context is a build-file-specific mapping from
          builder-name to target extraction function,
          for every registered builder.
          """
          extraction_context = {}
          for name, builder in Plugin.builders.items():
              extraction_context[name] = extractor(name, builder,
                                                   build_file_path, self)
          return extraction_context