code: def _init_modeldef(self):
      data = [
          {
              "model": self.name,
              "operations": {
                  "scheduler": {
                      "description": dask_scheduler_description,
                      "exec": (
                          "${guild_python_exe} -um guild.plugins.dask_scheduler_main "
                          "${flag_args}"
                      ),
                      "flags": dask_scheduler_flags_data,
                  }
              },
          }
      ]
      gf = guildfile.Guildfile(data, src=f"<{self.__class__.__name__}>")
      return gf.models[self.name]
  
file_path: guildai/guild/plugins/dask.py
imports: import yaml
  import guild
  from guild import guildfile
  from guild import model
  from guild import plugin
label_desc: Use image node_id 2 for calling the DaskModelProxy obj's underlying member method code with example usage: obj._init_modeldef() and returns: gf