code: def main():
      parser = ArgumentParser(
          "Diffusers CLI tool", usage="diffusers-cli <command> [<args>]"
      )
      commands_parser = parser.add_subparsers(
          help="diffusers-cli command helpers"
      )
  
      # Register commands
      EnvironmentCommand.register_subcommand(commands_parser)
      FP16SafetensorsCommand.register_subcommand(commands_parser)
  
      # Let's go
      args = parser.parse_args()
  
      if not hasattr(args, "func"):
          parser.print_help()
          exit(1)
  
      # Run
      service = args.func(args)
      service.run()
  
imports: from argparse import ArgumentParser
  from .env import EnvironmentCommand
  from .fp16_safetensors import FP16SafetensorsCommand
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types