code: def define_env(env):
      @env.macro
      def models_by_organization():
          result = defaultdict(list)
          for model in ALL_MODELS:
              result[model.creator_organization].append(model)
          if "Simple" in result:
              del result["Simple"]
          return result
  
      @env.macro
      def run_expanders():
          return RUN_EXPANDERS
  
      @env.macro
      def render_model_tags(model):
          return ", ".join([f"`{tag}`" for tag in model.tags])
  
imports: from collections import defaultdict
  from helm.benchmark.run_expander import RUN_EXPANDERS
  from helm.proxy.models import ALL_MODELS
label_desc: Use image node_id 1 for calling a global function with example usage: define_env(env) and returns: result, RUN_EXPANDERS, str