docs: def includeme(config):
      """
      :type config: :class:`pyramid.config.Configurator`
      """
      settings = config.registry.settings
      swagger_versions = get_swagger_versions(settings)
  
      # for rendering /swagger.yaml
      config.add_renderer(
          'yaml', 'pyramid_swagger.api.YamlRendererFactory',
      )
  
      # Add the SwaggerSchema to settings to make it available to the validation
      # tween and `register_api_doc_endpoints`
      settings['pyramid_swagger.schema12'] = None
      settings['pyramid_swagger.schema20'] = None
  
      # Store under two keys so that 1.2 and 2.0 can co-exist.
      if SWAGGER_12 in swagger_versions:
          settings['pyramid_swagger.schema12'] = get_swagger_schema(settings)
  
      if SWAGGER_20 in swagger_versions:
          settings['pyramid_swagger.schema20'] = get_swagger_spec(settings)
  
      config.add_tween(
          "pyramid_swagger.tween.validation_tween_factory",
          under=pyramid.tweens.EXCVIEW
      )
  
      config.add_renderer('pyramid_swagger', PyramidSwaggerRendererFactory())
  
      if settings.get('pyramid_swagger.enable_api_doc_views', True):
          if SWAGGER_12 in swagger_versions:
              register_api_doc_endpoints(
                  config,
                  settings['pyramid_swagger.schema12'].get_api_doc_endpoints())
  
          if SWAGGER_20 in swagger_versions:
              register_api_doc_endpoints(
                  config,
                  build_swagger_20_swagger_schema_views(config),
                  base_path=settings.get('pyramid_swagger.base_path_api_docs', ''))