code: def __init__(self):
      self.name = "r-script"
      self.reference = modellib.ModelRef(
          "builtin",
          "guildai",
          guild.__version__,
          self.name,
      )
      self.modeldef = model_proxy.modeldef(
          self.name,
          {
              "operations": {
                  "init": {
                      "description": "Initialize R script support for Guild.",
                      "main": "guild.plugins.r_script_init_main",
                  }
              }
          },
          f"<{self.__class__.__name__}>",
      )
  
imports: import logging
  import os
  import yaml
  import guild
  from guild import config
  from guild import guildfile
  from guild import model
  from guild import model_proxy
  from guild import plugin
  from .None import r_util
label_desc: Use image node_id 1 to create a new RScriptBuiltinsModelProxy object  with example: obj = RScriptBuiltinsModelProxy()