class_docstr: Setup config at `~/.gluoncv` unless it exists already.
class_docstr_tok: ["Setup","config","at","`","~\/.gluoncv","`","unless","it","exists","already","."]
docstr: save config file at default config location `~/.gluoncv/config.yml`.
docstr_tok: ["save","config","file","at","default","config","location","`","~\/.gluoncv\/config.yml","`","."]
code: def save_file(self, config):
      "save config file at default config location `~/.gluoncv/config.yml`."
      with self.config_file.open("w") as f:
          yaml.dump(config, f, default_flow_style=False)
  
file_path: gluon-cv/gluoncv/auto/data/auto_data.py
imports: import os
  import re
  from pathlib import Path
  import yaml
  from ...utils.download import download
  from ...utils.filesystem import unzip, untar, PathTree
label_desc: Use image node_id 9 for calling the Config obj's underlying member method code with example usage: obj.save_file(config) without return types